Do you believe that in 2020 every single American, regardless of race, sex, or income level, has an equal opportunity to achieve his/her American Dream? Why or why not?
Answers
Answer:
Tbh i rlly dont think that many will. Most may succeed in doing so. But i mean come on its 2020 anything can happen.
Explanation:
Answer:
yes 100% what reasons r there to not tho
Explanation:
Related Questions
Which of the following statements correctly describe the solubility product constant Ksp for a slightly soluble substance? Select all that apply
a. Ksp depends on the temperature of the solution.
b. Ksp is independent of the concentrations of the ions in solution.
c. The value of Ksp indicates how far a dissolution equilibrium proceeds in favor of dissolved solute.
Answers
The correct statements regarding the solubility product constant (Ksp) for a slightly soluble substance are:
a. Ksp depends on the temperature of the solution.
c. The value of Ksp indicates how far a dissolution equilibrium proceeds in favor of dissolved solute.
What is the solubility product constant?
The solubility product constant, often denoted as Ksp, is a mathematical constant that represents the equilibrium expression for a slightly soluble compound dissolving in a solvent to form ions. It quantitatively describes the solubility of the compound in a particular solvent.
a. Ksp is influenced by changes in temperature in a solution:
The solubility product constant, Ksp, is influenced by temperature. In general, as temperature increases, the solubility of most substances also increases, leading to a higher value of Ksp. However, this relationship may not hold true for all substances.
b. Ksp is independent of the concentrations of dissolved the ions in solution:
This statement is incorrect. The solubility product constant, Ksp, is directly related to the concentrations of the ions in solution at equilibrium. The value of Ksp is determined by the ratio of the concentrations of the dissolved ions raised to the power of their respective stoichiometric coefficients.
c. The magnitude of Ksp reflects the extent to which a dissolution equilibrium favors the production of dissolved solute.:
This statement is correct. The magnitude of the solubility product constant, Ksp, provides information about the extent to which a dissolution equilibrium proceeds. A higher value of Ksp indicates that the equilibrium favors the formation of dissolved solute and that the substance is more soluble. Conversely, a lower value of Ksp suggests limited solubility and a shift towards the solid phase.
Therefore, the correct statements are
a. Ksp is influenced by changes in temperature in a solution and c. The value of Ksp provides information about the extent to which a dissolution equilibrium proceeds in favor of dissolved solute.
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What is the wavelength of electromagnetic radiation
with a frequency of 5.00 × 1 0 12 Hz? What kind of
electromagnetic radiation is this?
Answers
Answer:
λ = 6x10^-5 m
Explanation:
c = λf
3.00x10^8 = 5.00x10^12 x λ
λ = 6x10^-5 m
An experiment was conducted to determine if the intermolecular forces in two liquids affects their boiling points. Each liquid was sprayed on a paper towel. Each paper towel was wiped across a glass table to moisten the surface. The table shows a partial record of the experiment.
Answers
Given the partial record of the experiment, the information that should be recorded in the last column of the table is B. Time is taken by the glass surface to dry.
What is an intermolecular force?These are forces of attraction between atoms, molecules, and ions when they are placed close to each other.
Intermolecular forces are electrostatic in nature, and this means that they arise from the interaction between positively and negatively charged species.
Hence, an intermolecular force acts between molecules and their examples are London dispersion forces, dipole-dipole interaction, ion-dipole interaction, and van der Waals forces.
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The complete question
An experiment was conducted to determine if the intermolecular forces in two liquids affect their boiling points. Each liquid was sprayed on a paper towel. Each paper towel was wiped across a glass table to moisten the surface. The table shows a partial record of the experiment.
Experimental Record
Liquid Intermolecular Forces ?
А relatively strong
B relatively weak
What information should be recorded in the last column of the table?
Time is taken by the liquids to start boiling
Time is taken by the glass surface to dry
The volume of liquid required to moisten the paper towels
Time taken by the paper towels to become completely moist
Anyone know the answer to this one?
Answers
Answer:
C) 0.24 M
Explanation:
The given chemical reaction is presented as follows;
H₂SO₄(aq) + 2 KOH(aq) → K₂SO₄(aq) + 2 H₂O(l)
The titration experiment results are;
Volume of H₂SO₄(aq) used = 12.0 mL
Volume of KOH (aq) used = 36.0 mL
Concentration of KOH (aq) = 0.16 M
The number of moles of KOH present, n = 0.16 M × 36/1000 = 0.00576 moles
From the given reaction, 1 mole of H₂SO₄ reacts with 2 moles of KOH to give 1 mole of K₂SO₄ and 2 moles of H₂O
Therefore, 0.00576 moles of KOH reacts with (1/2) × 0.00576 moles = 0.00288 moles of H₂SO₄
Therefore, for the reaction;
The number of moles of H₂SO₄ in 12.0 mL of H₂SO₄ = 0.00288 moles
The concentration of the H₂SO₄ = 0.00288 M/(12.0 mL) = 0.24 M
The concentration of H₂SO₄ in the reaction = 0.24 M.
A cube of iron at 20. Degrees C is placed in contact with a cube of copper at 60 degrees C. Which statement describes the initial flow of heat between the cubes?
Answers
Answer:
D) Heat flows from the copper cube to the iron cube.
Explanation:
These are the options for the question
A) Heat does not flow between the cubes.
B) Heat flows in both directions between the cubes
C) Heat flows from the iron cube into the copper cube.
D) Heat flows from the copper cube to the iron cube.
From the knowledge of
second law of Thermodynamicss, which says heat moved from higher temperature to lower temperature region, and termal conduction,energy such as heat will only flow from higher temperature to lower temperature, which means the heat will move from higher concentration to lower Concentration. As the cube of copper at 60 degrees is heated the atoms beginnings to vibrate as it acquire energy then moves and flow to the lower temperature part.
Therefore, Heat flows from the copper cube to the iron cube.
Separate the redox reaction into its component half‑reactions. 3O2+4Co⟶2Co2O3 Use the symbol e− for an electron.
How would these be split into thier respective half-reactions?
Answers
The balanced half-reactions are: Oxidation half-reaction: 4Co → 4Co2+ + 8e-Reduction half-reaction: O2 + 2e- → 2O2 -
Given equation: 3O2+4Co⟶2Co2O3Using the symbol e− for an electron. The redox reaction can be broken down into two half-reactions. The reduction half-reaction is the one in which a species gains electrons and the oxidation half-reaction is the one in which a species loses electrons. The half-reactions are as follows: Reduction Half-reaction Half-reaction equation: O2 + 2e- → 2O2 -Oxidation number of oxygen in O2=0 and in O2^-= -1Charge on the left side = 0Charge on the right side = 2 x (-1) = -2Thus, 2 electrons are added to the left side to balance the charge, making the half-reaction:O2 + 2e- → 2O2 -Oxidation Half-reaction Half-reaction equation: 4Co → 4Co2+ + 8e-Oxidation number of cobalt in Co=0 and in Co2+ =+2Charge on the left side = 0Charge on the right side = 4 x (+2) + 8 x (-1) = -4Thus, 8 electrons are added to the right side to balance the charge, making the half-reaction:4Co → 4Co2+ + 8e-Thus, the balanced half-reactions are: Oxidation half-reaction: 4Co → 4Co2+ + 8e-Reduction half-reaction: O2 + 2e- → 2O2 -
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Balancing acid average equationa. PbO2 + Mn2+ -> Pb2+ + Mn04-
Answers
1) Balance the chemical equation.
\(PbO_2+Mn^{2+}\rightarrow Pb^{2+}+MnO^-_4_{}\)Step 1: Assign oxidation numbers
PbO2: Pb (+4) and O (-2)
Mn2+: Mn (+2)
Pb2+: Pb (+2)
MnO4-: Mn (+7) and O (-2)
Step 2: Figure out what's being reduced and what's being oxidized.
Mn has been oxidized. It changed from (+2) to (+7)
Pb has been reduced. It changed from (+4) to (+2)
Step 3: Write half-reaction
Oxidation half-reaction
\(Mn^{2+}\rightarrow MnO^-_4\)Reduction half-reaction
\(PbO_2\rightarrow Pb^{2+}_{}\)Step 4: Balance all elements EXCEPT for hydrogen and oxygen
Oxidation half-reaction
\(Mn^{2+}\rightarrow MnO^-_4\)Reduction half-reaction
\(PbO_2\rightarrow Pb^{2+}_{}\)Step 5: Balance oxygens. We do so by adding water molecules to the half-reactions as needed.
Oxidation half-reaction
\(Mn^{2+}+4H_2O\rightarrow MnO^-_4\)Reduction half-reaction
\(PbO_2\rightarrow Pb^{2+}_{}+2H_2O\)Step 6: Balance hydrogens. We do so by adding protons (H+) to the half-reactions as needed.
Oxidation half-reaction
\(Mn^{2+}+4H_2O\rightarrow MnO^-_4+8H^+\)Reduction half-reaction
\(PbO_2+4H^+\rightarrow Pb^{2+}_{}+2H_2O\)Step 7: Balance charges. We do so by adding electrons
Oxidation half-reaction
\(Mn^{2+}+4H_2O\rightarrow MnO^-_4+8H^++5e^-\)Reduction half-reaction
\(PbO_2+4H^++2e^-\rightarrow Pb^{2+}_{}+2H_2O\)Step 8: Multiply half-reactions to make the number of electrons equal.
Oxidation half-reaction.
\(2\cdot(Mn^{2+}+4H_2O\rightarrow MnO^-_4+8H^++5e^-)\)New oxidation half-reaction.
\(2Mn^{2+}+8H_2O\rightarrow2MnO^-_4+16H^++10e^-\)Reduction half-reaction
\(5\cdot(PbO_2+4H^++2e^-\rightarrow Pb^{2+}_{}+2H_2O)\)New reduction half-reaction
\(5PbO_2+20H^++10e^-\rightarrow5Pb^{2+}_{}+10H_2O)\)Step 9: Cancel electrons and combine the half-reactions
Overall reaction
\(2Mn^{2+}+8H_2O+5PbO_2+20H^+\rightarrow2MnO^-_4+16H^++5Pb^{2+}+10H_2O\)Step 10: Balance the chemical equation by reducing the number of water molecules and protons.
Overall reaction
\(2Mn^{2+}+5PbO_2+4H^+\rightarrow2MnO^-_4+5Pb^{2+}+2H_2O\)2) The balanced chemical equation
Overall reaction
\(2Mn^{2+}+5PbO_2+4H^+\rightarrow2MnO^-_4+5Pb^{2+}+2H_2O\).
1. Scientists measured the spot size of guppies (small fish) in two different populations. Which
population has more guppies with large spots?
a
They both have the same number of guppies with large spots.
b
The population in Brazil has more guppies with large spots.
С
The population in Venezuela has more guppies with large spots.
d
These bar graphs do not show which population has more guppies with large spots.
Answers
Answer: the answer is C
Explanation:
Draw the major organic product of each reaction. Assume a one-to-one ratio of reagents and benzene.For the functional groups added, be sure to draw out all bonds, lone pairs, and formal charges. (Note: the short-cut for NO2 will not be accepted for this question) Did you draw just one compound in each box? Does the organic product contain all bonds, lone pairs and nonzero formal charges? Which electrophile is formed in each route?
Answers
Secondary amine is what it is. Option (B3-dimethylbutan-2-amine )'s is the primary organic product created during the following reaction. Thus, if more hydrogen is added to carbon, we will obtain the main product, according to the Markovnikov Rule.
As a result, the main product produced by adding hydrogen to carbon-1, which has a higher concentration of hydrogen, and adding bromine to carbon-2 is 2-bromopropane. When a reaction follows Markovnikov's rule, a chemical or product is said to be a major organic product. The tertiary alkyl iodide is the largest byproduct of the second process, which transforms alcohol into alkyl iodide, while the secondary alkyl iodide is the minor byproduct.
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When a substance changes from a solid to a liquid what is it called brainlest
A.Freezing
B.Boiling
C.Sublimating
D.Melting
Answers
In a heating curve, when is the temperature constant?
O A during a phase change
O B. during a pressure change
Ос.
during a change in kinetic energy
OD. during a change in molecular velocity
Answers
The atomic masses of 35^Cl (75.53 percent) and 37^Cl (24.47 percent) are 34.968 and 36.956 amu, respectively. Calculate the average atomic mass of chlorine. The percentages in parentheses denote the relative abundances
Answers
An element can have multiple isotopes. Isotopes correspond to variations of the same element with respect to the number of neutrons in its nucleus. the number they give us, 35 and 37 correspond to the mass number of chlorine. The percentage will be how abundant the element is.
To find the average atomic mass we must multiply the mass of the isotope by its respective percentage of abundance and add these two results.
So, the average atomic mass of Cl will be:
\(AtomicMassCl=34.968amu\times75.53\%+36.956amu\times24.47\%\)\(\begin{gathered} AtomicMassCl=26.411amu+9.043amu \\ AtomicMassCl=35.454amu \end{gathered}\)Answer: the average atomic mass of chlorine is 35.454 amu
how to tell the difference between ionic and covalent bonds
Answers
Comparing the electronegativities of the two elements is one method of predicting the type of bond that will form between them.
Ionic bonds are produced between atoms of metals and non-metals where the metal loses an electron to complete its octet and the non-metal acquires that electron to complete its octet. Covalent bonds are formed when two atoms share electrons to complete their octets.
Ionic chemicals are bound together by ionic bonds, whereas covalent compounds are held together by strong covalent bonds. While covalent molecules are normally insoluble in water, ionic compounds are. Additionally, covalent molecules are typically more flammable than ionic ones.
If the electronegativity of the two atoms differs by enough to allow one to totally draw an electron away from the other, the connection is ionic.
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What is the balanced equation for sodium bicarbonate sodium carbonate water carbon dioxide?
Answers
The balanced equation for sodium bicarbonate sodium carbonate water carbon dioxide is :
2 NaHCO3 + Na2CO3 + 2 H2O → 3 CO2 + 3 NaOH
NaHCO3 is the formula for the chemical substance sodium bicarbonate (IUPAC name: sodium hydrogen carbonate), popularly known as baking soda or bicarbonate of soda. It's a sodium cation (Na+) and bicarbonate anion (HCO3) salt. Sodium bicarbonate is a white crystalline powder.
It tastes somewhat salty and alkaline, similar to washing soda (sodium carbonate). Nahcolite is the natural mineral form. It is found dissolved in many mineral springs as a component of the mineral natron.
By neutralizing excess stomach acid, sodium bicarbonate, popularly known as baking soda, is used to treat heartburn, sour stomach, or acid indigestion. It is regarded to belong to the class of drugs known as antacids when taken for this purpose. It may be used to alleviate stomach or duodenal ulcer symptoms.
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T/F : a device driver is a program that controls a device attached to the computer.
Answers
True. Another device driver is an application of software that manages an associated device's connection to the computer.
Describe a computer.A machine is a computing device typically accepts data in the manner of digitally enhanced data and processes it in accordance with a program, piece of software, or set of directions that specify how the information should be handled. Data is replicated from the main memory of the computer, then it is transferred to the hard drive. The range of equipment that writes data toward the disk is known as the drive.
How are computers operated?A computer, an electronic information device, functions by transforming information into binary data (ones and zeros), which are then rearranged into sentences or actions using simple arithmetic.
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which molecule below has a nonpolar bond in which the electrons are being shared equally? a) h2o b) nh3 c) cl2 s) hcl
Answers
Answer:
C) Cl2
Explanation:
Water (H2O), Ammonia (NH3), and Hydrochloric aid (HCl) are all polar. Cl2 is the only non-polar out of the answers and the electrons are shared equally.
ASAPPPP EASYYYY!!!
Total number of single, double, and triple bonds for C2H6(g).
_ _ _
Answers
Answer:
2 single, 0 double, and 1 triple
Explanation:
H-C≡C-H
At what degree of sloping dose soil erosion begin to taper off
Answers
There is no specific threshold or degree of slope steepness at which soil erosion abruptly begins to taper off
Soil erosion is influenced by various factors, including slope steepness, rainfall intensity, soil characteristics, vegetation cover, and land management practices. As slope steepness increases, the potential for soil erosion generally increases due to the gravitational force acting on the eroded materials. However, there is no specific threshold or degree of slope steepness at which soil erosion abruptly begins to taper off. The relationship between slope steepness and soil erosion is generally non-linear. At low slope angles, soil erosion tends to be minimal as the gravitational force is relatively weak. As the slope angle increases, soil erosion typically increases exponentially due to the increased force of gravity. Eventually, as the slope steepness continues to increase, soil erosion may reach a point of maximum potential where the erodibility of the soil and other factors become limiting factors. Beyond this point, the rate of soil erosion may start to taper off, but it does not completely stop. Instead, it may stabilize or decrease slightly compared to the maximum erosion potential observed at steeper slopes.
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Question 11
Which formula represents a hydrocarbon?
C₂H6
C₂H5OH
C₂H5Cl
C₂H6O
Answers
Answer:
C₂H6
Explanation:
Among the given options, the formula A) C₂H6 represents a hydrocarbon (specifically, ethane). Option A
A hydrocarbon is a compound that consists of only carbon and hydrogen atoms. It is important to identify the formula that represents a hydrocarbon among the given options:
A) C₂H6: This formula represents ethane, which is a hydrocarbon. Ethane consists of two carbon atoms bonded together with single bonds and six hydrogen atoms.
B) C₂H5OH: This formula represents ethanol, which is not a hydrocarbon. Ethanol contains a hydroxyl group (-OH), indicating the presence of oxygen in addition to carbon and hydrogen atoms. It is an alcohol, not a hydrocarbon.
C) C₂H5Cl: This formula represents ethyl chloride, which is not a hydrocarbon. Ethyl chloride contains a chlorine atom (Cl) in addition to carbon and hydrogen atoms. It is a haloalkane, not a hydrocarbon.
D) C₂H6O: This formula represents ethanol, which, as mentioned before, is not a hydrocarbon. Ethanol contains an oxygen atom (O) in addition to carbon and hydrogen atoms. It is an alcohol, not a hydrocarbon.
Among the given options, the formula A) C₂H6 represents a hydrocarbon (specifically, ethane). It consists only of carbon and hydrogen atoms, making it a suitable representation of a hydrocarbon.
In summary, the formula C₂H6 (option A) represents a hydrocarbon, while the other options contain additional elements (oxygen or chlorine) that make them non-hydrocarbon compounds. Option A
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Which of the following will form a metallic bond with a metal?
a
another metal
b
none of the other choices
c
semimetal
d
a nonmetal
Answers
In double replacement reactions, why will two metals not combine with each other when products are
formed?
A metals form negative ions and like charges attract
B metals form positive ions and like charges do not attract
Cmetals form negative ions and like charges do not attract
D metals form positive ions and like charges attract
Answers
In double replacement reactions, two metals not combine with each other when products are formed because, metals form negative ions and like charges attract. Therefore, option A is correct.
What is metal ?A metal is a substance that exhibits a shiny appearance when freshly processed, polished, or shattered, and conducts electricity and heat rather well. Generally speaking, metals are malleable and ductile.
We use the (s) symbol for solid because salt is an insoluble substance that will not dissolve in water. The silver, fluoride, potassium, and chloride ions would have effectively moved to a new location if there had been no precipitate formation, but they would still be floating around as ions. In this instance, nothing happens.
When two ionic compounds exchange ions and create two new ionic compounds, this is known as a double replacement reaction.
Thus, option A is correct.
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Describe three characteristics of the outer core and explain why the outer core is so important to humans on earth.
Answers
Answer:
The outer core is the only layer that is liquid. It is also mainly made from nickel and iron. The main job of the outer core is that it's responsible for the Earth's magnetic field. As the earth spins, the liquid inside this layer spins aswell, keeping it balanced.
plzz someone helppp!!
True or False: Write True or False in the blank next to the statement.
It is possible to have a decimal coefficient.
A Similar element replacing another in a compound is a Single Replacement
Both sides of the chemical equation must be equal after solving.
I wrote my name at the top of the page.
Synthesis Reactions involve a larger compound splitting into smaller parts. 10.
Answers
Answer:
im happy to help with any other questions!
true,true,false,true,false
Answer:
Here we goooo
Explanation:
False. Atoms cannot be divided.
It is possible to have a decimal coefficient.
True.
A Similar element replacing another in a compound is a Single Replacement
True, given the chemical reaction that took place.
Both sides of the chemical equation must be equal after solving.
I sure hope so.
I wrote my name at the top of the page.
False. That is decomposition reactions.
Synthesis Reactions involve a larger compound splitting into smaller parts. 10.
Which term is defined as “anything that has mass and occupies space”? a -compound b - element c - substance d - matter
Answers
Answer:
D) Matter
Explanation:
A sample of 140.1 g of a noble gas occupies 40.75 L at 758 mm Hg and 23.0 °C. What is its molar mass? Use 3 significant figures. Identify the noble gas.
Answers
The noble gas with a molar mass of 80.0 g/mol is Krypton (Kr).
To find the molar mass of the noble gas, follow these steps:
1. Convert the given pressure to atmospheres: 758 mm Hg × (1 atm / 760 mm Hg) = 0.998 atm.
2. Convert the given temperature to Kelvin: 23.0 °C + 273.15 = 296.15 K.
3. Use the ideal gas law equation, PV = nRT, where P is pressure, V is volume, n is the number of moles, R is the ideal gas constant (0.08206 L atm / mol K), and T is the temperature.
4. Rearrange the equation to solve for n: n = PV / RT.
5. Plug in the given values: n = (0.998 atm × 40.75 L) / (0.08206 L atm / mol K × 296.15 K) = 1.7515 mol.
6. Calculate the molar mass by dividing the mass of the gas by the number of moles: Molar mass = 140.1 g / 1.7515 mol = 80.0 g/mol (rounded to 3 significant figures).
The noble gas with a molar mass of 80.0 g/mol is Krypton (Kr).
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Convert the following:
1.
25.4 centimeters________ ??
millimeters
2.
53 millimeters ________ ??centimeters
Answers
53 mm = 5.3 cm
Answer:
1. 254 milli
2. 5.3 centi
Explanation:
254 milli = 25.4 centi
53 milli = 5.3 centi
A student is investigating the properties of several different minerals in order to identify them. Which of the following describe the streak test the student will be performing on each mineral?
A
a line of ore in the mineral that is a different color
B
a crystal in the mineral that is a different color
C
the color of the powder a mineral makes
D
the color of the outside of the mineral
Answers
The streak test involves determining the color of the powder produced by rubbing a mineral against an unglazed porcelain plate. Therefore, the answer is (C) the color of the powder a mineral makes.
What is mineral?A mineral is a naturally occurring inorganic solid with a specific chemical composition and a crystalline structure. Minerals are the building blocks of rocks, and they form through a variety of geological processes, such as cooling and solidification of magma, precipitation from hot water solutions, and alteration by pressure and heat. There are thousands of different minerals, each with its own unique properties and characteristics. Some minerals, such as quartz and feldspar, are very common in the Earth's crust, while others, such as diamond and gold, are rare and highly valued.
Here,
This test can be useful in mineral identification because some minerals may have a different color streak than their outward appearance, due to variations in the composition of the mineral. For example, hematite, which is commonly a dark gray or black color, produces a reddish-brown streak. Similarly, pyrite, which is often a brassy yellow color, produces a greenish-black streak. By performing a streak test, the student can gather more information about the mineral and use that information to help identify it.
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I’m the space provided below, show a correct numerical setup for calculating the total number of moles of ethylene glycol needed to prepare 2.50 liters of a 10.0 M solution?
Answers
2.50 litres of a 10.0 M solution require the preparation of 25.0 moles of ethylene glycol.
What is the recommended ratio of ethylene glycol to water?Excellent antifreeze, anti-boil, and anti-corrosive qualities are produced when antifreeze and water are mixed in a 50/50 ratio. The proportion of conventional ethylene glycol to water in severely cold conditions can reach 70% antifreeze, 30% water. The maximum antifreeze to water ratio when using DEX-COOL® is 60/40.
moles = concentration (M) x volume (L)
Given that the desired concentration is 10.0 M and the volume needed is 2.50 L, the setup for calculating the total number of moles of ethylene glycol can be written as:
moles = 10.0 M x 2.50 L
moles = 25.0 mol
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Approximately how many nephrons does a kidney have?
A.
billions
B.
one million
C.
one
D.
100
Answers
Answer:
nephron, functional unit of the kidney, the structure that actually produces urine in the process of removing waste and excess substances from the blood. There are about 1,000,000 nephrons in each human kidney.
If 8. 0 mg of a radioactive substance naturally decays to 0. 50 mg over 184 days, what is the half-life of the radioisotope?.
Answers
The half-life of radioactive elements is 46 days.
We need to know about the half-life of the radioactive elements to solve this problem. The radioactive element will decay over time depending on the half-life and follow the equation
N = No(1/2)^(t/t'')
where N is the final quantity, No is the initial quantity, λ is the decaying constant, t is time and t'' is the half-life of a radioactive element.
From the question above, we know that
No = 8 mg
N = 0.5 mg
t = 184 days
By substituting the given parameters, we can calculate the half-life
N = No . (1/2)^(t / t'')
0.5 = 8(1/2)^(184 / t'')
1/16 = (1/2)^(184 / t'')
(1/2)^4 = (1/2)^(184 / t'')
4 = 184/t''
t'' = 184/4
t'' = 46 days
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