Answers
The correct answer from the task given above which are not names of tectonic plates are:
Gondwana PlatePangaea PlateThe correct answer choices are options c and e.
What is meant by tectonic plates?Tectonic plates can simply be defined as that massive solid rocks which is formed as a result of smashing of two different tectonic plates. In order words, when two or more different plates collides with one another, it leads to the production of tectonic plates.
So therefore, it can be deduced from above that tectonic plates are composed of the lithosphere.
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Related Questions
mechanism of action that will produce diuretic effect- increase the number of particles in the tubular fluid . True or False
Answers
True, mechanism of action that will produce diuretic effect- increase the number of particles in the tubular fluid.
When the kidneys filter too much body fluid, it is called diuresis. As a result, you produce more urine and need to use the restroom more frequently. Diuresis may be brought on by specific medical disorders or by taking drugs that boost urine production. This illness can also be caused by lifestyle choices. Water tablets or diuretics are drugs that assist the body in eliminating extra fluid. They are frequently prescribed for illnesses like high blood pressure, chronic renal disease, and heart failure.
The kidneys are told to expel more water and salt via diuretics. This lessens edema and improves blood circulation throughout the body.
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Drag the tiles to the correct locations on the equation. Not all tiles will be used.
Two atoms interact with each other and change as shown by the equation. Complete the equation by filling in the missing parts.
5
2
4
3
1
H+H -
H
He
Li
+
Answers
The equation in the question is: H+H → H + H Complete the equation by filling in the missing parts. missing part is 1 → H+H-2 → →3 → He.
The atomic number of hydrogen is 1, which means it has only one proton in the nucleus and one electron in its shell. Two hydrogen atoms react with each other to form helium. Helium has 2 protons and 2 neutrons in its nucleus and two electrons in its shell. Therefore, the equation is:
H + H → HeIt can be seen that:1. H + H (Reactants)
2. → (Yields or Reacts to form)
3. He (Product)Therefore, the tiles will be arranged as shown below: 1 → H+H-2 → →3 → He
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More than two thirds of elements are classified as
Answers
Answer:
Metals
Explanation:
Two Thirds means 75 %.
Metals account for about more than two - thirds of all elements.
Explain the process of electroplating a metal spoon with zinc, state the anode cathode and electrolytes to be used. Balance the anodic and cathodic equations at the end of the electroplating.
Answers
The metal would be the cathode and Zinc would be the anode. There must be an anode and a cathode in an electrochemical cell.
How do you electroplate a metal with zinc?Steps to electroplate a metal with zinc:
Prepare the electrolyte solution: Dissolve zinc sulfate in water to make a solution. This will serve as the electrolyte solution.
Prepare the metal to be plated (cathode): Clean the metal to be plated thoroughly to remove any dirt, grease, or other contaminants. This is important to ensure good adhesion of the zinc plating.
Prepare the zinc anode: Clean the zinc anode thoroughly and suspend it in the electrolyte solution.
Set up the electroplating apparatus: Connect the positive terminal of the power supply to the zinc anode and the negative terminal to the metal to be plated (cathode). Place the metal to be plated (cathode) in the electrolyte solution.
Start the electroplating process: Apply a direct current (DC) voltage to the electrodes. This will cause the zinc ions in the electrolyte solution to be attracted to the metal to be plated (cathode) and deposit on its surface.
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How many atoms of oxygen are on the reactants side of this balanced equation?
2AgNO3 (aq)+ Cu(s) —Cu(NO3)2 (aq)+ 2Ag(s)
12
2
3
6
Answers
Answer:
Explanation:
I tried to figure it out but my head wasn’t working sorry
Lily replicates an experiment that found that the number of calories in a particular food is 50 kcal. She obtained data from five trials: 50 kcal, 72 kcal, 50 kcal, 12 kcal, and 50 kcal. Which best describes her data results? O accurate O incorrect O invalid O precise
Helpppppp?!!?!
Answers
Answer:
Invalid
Explanation:
Answer:
Accurate
Explanation:
hi how do i do d (ii)? thanks!
Answers
A solution with nitrate(V) ion concentrations over 0.05 mg/cm3 has a molarity of around 1.61 x 10-5 mol/L.
We must first convert the amount of nitrate(V) ions in drinking water to moles per litre since the threshold concentration over which "Blue-Baby" Syndrome might manifest is 0.05 mg/cm3.
It is necessary to know the molar mass of nitrate(V) ions in order to convert from mg/cm3 to moles per litre (NO3-).
The formula below can be used to determine NO3-'s molar mass:
N: 14.01 g/mol for the atomic mass
O: 16.00 g/mol is the atomic mass (3 oxygen atoms in NO3-)
NO3-'s total molar mass is equal to 14.01 + 16.00 x 3 = 62.01 g/mol.
Let's now translate the specified concentration from mg/cm3 to moles/liter (M).
As 1 g = 1000 mg, 1 mg/cm3 is 0.001 g/cm3.
1 cm3 = 0.001 g/mL multiplied by 0.001 g/cm3
1 L/1000 mL x 0.001 g/mL = 0.001 g/L
We must change the grams into moles using the molar mass in order to get the molarity:
1.61 × 10-5 mol/L = 0.001 g/L / 62.01 g/mol
As a result, a solution with nitrate(V) ion concentrations over 0.05 mg/cm3 has a molarity of around 1.61 x 10-5 mol/L.
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how to get N-methyl-4-(p-tolyldiazenyl)aniline from benzene and toluene
Answers
The synthesis of N-methyl-4-(p-tolyldiazenyl)aniline can be accomplished in a few steps, as outlined below:
Step 1: Nitration of toluene
Step 2: Reduction of p-nitrotoluene
Step 3: Diazotization of p-toluidine
Step 4: Coupling with N-methylaniline
Toluene is first nitrated to form p-nitrotoluene. This can be done by treating toluene with a mixture of nitric acid and sulfuric acid under controlled conditions. The reaction can be represented as follows:
Toluene + HNO3 → p-nitrotoluene + H2O
The p-nitrotoluene is then reduced to form p-toluidine, using a reducing agent such as iron and hydrochloric acid. The reaction can be represented as follows:
p-nitrotoluene + 6HCl + Fe → p-toluidine + 3H2O + FeCl3
The p-toluidine is then diazotized using nitrous acid to form the diazonium salt. The reaction can be represented as follows:
p-toluidine + HNO2 → p-tolyldiazonium chloride + H2O
The diazonium salt is then coupled with N-methylaniline to form N-methyl-4-(p-tolyldiazenyl)aniline. The reaction can be represented as follows:
p-tolyldiazonium chloride + N-methylaniline → N-methyl-4-(p-tolyldiazenyl)aniline + HCl
Overall reaction:
Toluene + HNO3 → p-nitrotoluene + H2O
p-nitrotoluene + 6HCl + Fe → p-toluidine + 3H2O + FeCl3
p-toluidine + HNO2 → p-tolyldiazonium chloride + H2O
p-tolyldiazonium chloride + N-methylaniline → N-methyl-4-(p-tolyldiazenyl)aniline + HCl
It is important to note that these reactions require careful handling and should only be attempted by individuals with proper training and experience in organic chemistry.
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If a small amount of a strong base is added to buffer made up of a weak acid, HA, and the sodium salt of its conjugate base, NaA, the pH of the buffer solution does not change appreciably because:__________
a. the K, of HA is changed.
b. No reaction occurs.
c. the strong base reacts with A to give HA, which is a weak acid.
d. the strong base reacts with HA to give AOH and H'.
e. the strong base reacts with HA to give A, which is a weak base,
Answers
Answer:
e. the strong base reacts with HA to give A, which is a weak base
Explanation:
Let's consider a buffer made up of a weak acid, HA, and the sodium salt of its conjugate base, NaA. The function is a buffer system is to muffle the change in the pH when an acid or a base is added.
Let's suppose a strong base is added. Then, OH⁻ would be more available. OH⁻ ions react with the acid component of the buffer and its effect is reduced. The corresponding reaction is:
OH⁻ + HA ⇄ A⁻ + H₂O
As we can see, the strong base reacts with HA to give A, which is a weak base.
Which of the following would be considered renewable resources? You may choose more than one.
oil
corn
clean air
forests
Answers
Answer:
clean air
Explanation:
if the body is moving with uniform acceleration then, eng of motion are given as s = u+v/2+t
Answers
Yes, s = u+v/2+t, where s is the displacement, u is the beginning velocity, v is the end velocity, and t is the time required, is the equation of motion for a body travelling with uniform acceleration.
The basic law of motion, which states that a body's rate of change in displacement is directly proportional to its velocity, provides the basis for this equation. The equation of motion for a body travelling with constant acceleration, s = ut + 1/2at2, may be used to derive it.
The equation of motion for a body travelling with uniform acceleration is given by replacing the value of an as (v-u)/t and getting s = u+v/2+t. This formula is only accurate when the body's acceleration is constant and uniform.
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Use this reaction to answer the questions and explain :
CO(g)+2H2(g)-CH3OH(g) DeltaH= -91.8kJ
1- if the temperature of the system increases , will the value of the equilibrium constant k increase, decrease or stay the same?
2- Will the concentration of H2 increase, decrease or stay the same ?
Answers
1) If the temperature of the system increases, the equilibrium constant k decreases.
2) the concentration of H₂ increases.
The reaction is given as :
CO + 2H₂ ⇄ CH₃OH ΔH = -91.8 KJ ( exothermic reaction)
1) Temperature is the only factor that changes the equilibrium constant for the given reaction. As temperature increases equilibrium constant decreases because the reaction is exothermic reaction.
K = [ CH₃OH ] / [CO] [H₂]²
2) If the temperature increases the position of equilibrium moves to the left and concentration of H₂ increases.
Thus, 1) If the temperature of the system increases, the equilibrium constant k decreases.
2) the concentration of H₂ increases.
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Calculate the mass percent of silver in AgCl?
(Work shown)
Answers
Write the full electron configuration of Si, Si+4 and Si-4. How many valence electrons are in each of the 3 Si atoms?
Answers
In an atom there are levels of energy in the shell and sub shell
This energy level is expressed in the form of electron configurations.
Charging electrons in the sub shell uses the following sequence:
1s², 2s², 2p⁶, 3s², 3p⁶, 4s², 3d¹⁰, 4p⁶, 5s², 4d¹⁰, 5p⁶, 6s², etc.
The electron configuration of the element silicon (Si): 1s² 2s² 2p⁶ 3s² 3p²
valence electrons Si = 4
The electron configuration of the element silicon (Si) +4⇒releases 4 electron: 1s² 2s² 2p⁶
valence electrons Si⁴⁺ = 8
The electron configuration of the element silicon (Si) -4⇒gain 4 electron: 1s² 2s² 2p⁶ 3s² 3p⁶
valence electrons Si⁴⁻ = 8
SpongeBob & Friends and the Scientific Method
Scenario A. Krusty Krabs Breath Mints
Mr. Krabs created a secret ingredient for a breath mint that he thinks will "cure the bad breath people get from
cating crabby patties at the Krusty Krab. He asked 100 customers with a history of bad breath to try his new
breath mint. He had fifty customers (Group A) cat a breath mint after they finished eating a crabby patty. The
other fifty (Group B) also received a breath mint after they finished the sandwich, however, it was just a regular
breath mint and did not have the secret ingredient. Both groups were told that they were getting the breath mint
that would cure their bad breath. Two hours after cating the crabby patties, thirty customers in Group A and ten
customers in Group B reported having better breath than they normally had after cating crabby patties.
1. Which people are in the control group?
2. What is the independent variable?
3. What is the dependent variable?
4. What should Mr. Krabs' conclusion be?
5. Was this a quantitative or a qualitative measurement?
6. Why do you think 10 people in group B reported fresher breath?
Answers
Answer:
1. Which people are in the control group? The people who received the mint without the secret ingredient
(Group B) would be the control group.
2. What is the independent variable? Secret ingredient in the breath mint
3. What is the dependent variable? Amount of breath odor (or bad breath)
4. What should Mr. Krabs’ conclusion be? The breath mint with the secret ingredient appears to reduce the
amount of breath odor more than half the time, but it is not 100% effective.
5. Why do you think 10 people in group B reported fresher breath? This may be due to the placebo effect.
What is the mass of 1.78 moles of O2
Answers
Answer:
56.96 grams
Explanation:
To find the mass of 1.78 moles of O2, we need to use the molar mass of O2, which is the mass of one mole of O2.
The chemical formula for O2 is O-O or simply O2. The molar mass of O2 is the sum of the atomic masses of two oxygen atoms, which can be found on the periodic table.
The atomic mass of oxygen (O) is approximately 16.00 g/mol. So the molar mass of O2 is:
Molar mass of O2 = 2 x atomic mass of O
= 2 x 16.00 g/mol
= 32.00 g/mol
Therefore, the mass of 1.78 moles of O2 is:
Mass = number of moles × molar mass
= 1.78 mol × 32.00 g/mol
= 56.96 g
So the mass of 1.78 moles of O2 is 56.96 grams.
What is the average atomic mass of 10 hydrogen -1 molecules?
Answers
Answer:
1.674 x 10^-23 grams
Explanation:
Hydrogen-1 is called Protium
wikipedia
atomic mass of Protium is 1.00794 amu
sciencedirectcom
atomic mass of 10 Protiums is 10.0794 amu
10.0794 amu in grams is
1.6737236x10^-23 grams
1. The type of bond most likely to
occur between Mg and Br is a(n)
bond.
---
Answers
Answer:
Ionic bond.
Explanation:
Group 7 elements like Bromine (Br) and group 2 elements like Magnesium,(Mg) involved loss and gain of electrons which is typical with Ionic bonding.
An atom of element number 33 (As) is in its ground electronic state. Which one of the following sets quantum numbers could not apply to any of its electrons?
A) n=2 l=1 ml= -1 ms= 1/2
B) n=3 l=0 ml=0 ms= -1/2
C) n=3 l=2 ml=-2 ms= -1/2
D) n=4 l=0 ml=0 ms= -1/2
E) n=4 l=2 ml=1 ms= 1/2
Answers
Answer:
E) n=4 l=2 ml=1 ms= 1/2
Explanation:
Arsenic is a member of group 15 in the periodic table. Its electronic configuration is;
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p3. Its condensed electronic configuration can be written as [Ar]4s2 3d10 4p3. This electronic configuration shown here can now enable us to consider each option given in the question in order to meaningfully arrive at a logical answer.
If we look at option E, the data given for that electron is; n=4 l=2 ml=1 ms= 1/2. This refers to an electron in a 4d orbital. In the ground state configuration of arsenic shown above, there is no 4d orbital, hence option E must be the correct answer.
If you want to distinguish between alkanes and alkenes using chemical reactions, which test: the combustion or the bromine is the better one? Explain your answer. Question 2: what you can use to wash the cloth contaminated by oil?
Answers
1) We could use the bromine water test to tell the difference between the alkane and the alkene
2) We can use a detergent to wash a cloth that is contaminated by oil.
What is an alkane?The term alkane has to do with a hydrocarbon that is composed of only a straight chain compound there are no multiple bonds in the alkane molecule and this is the difference between the alkane and the alkene. The alkene is composed of double bonds. The alkene compounds are able to decolorize bromine water while the alkanes can not.
If you have a contaminated cloth, you can be able to wash it by the use of a detergent because it is able to lift off the grease or oil by the use of the hydrophobic tail of the detergent.
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Lewis structure of cesium ion
Answers
Answer:
Just one valence so Cs*
Explanation:
Cs*
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Which type of change does each statement describe?
Drag each tile to the correct location.
Physical Change vs. Chemical Change
Answers
Answer:
Physical Change: A block of wood is cut into three pieces, Aluminum melts and is poured into a mold, A liquid substance boils and decreases in volume
Chemical change : When two clear colorless liquids are mixed, a green liquid is produced. When two clear liquids are mixed a red solid substance is formed. A power ignites and burns when exposed to heat
PLATO
Explanation:
What is the meaning of friction
Answers
Explanation: the resistance that one surface or object encounters when moving over another.
or
the action of one surface or object rubbing against another.
Answer: a force that resists the motion of one object against another
What mass of mercury contains the same number of atoms as 90.15g of helium?
Answers
4.5g of mass of mercury contains the same number of atoms as 90.15g of helium.
What is mercury?With the atomic number 80 and the symbol Hg, mercury is a chemical element. Formerly known as hydrargyrum, which is a combination of the Greek terms hydor (water) and argyros), it is also known as quicksilver (silver). The only other element that is known to be liquid under these conditions is the halogen bromine, however metals like caesium, gallium, and rubidium melt just above ambient temperature. Mercury is a heavy, silvery d-block element.
All around the world, deposits of mercury, primarily in the form of cinnabar, are found (mercuric sulfide). Cinnabar, either natural or manufactured mercuric sulfide, is ground to create the crimson pigment vermilion.
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three compounds that nitrogen and oxygen can form
Answers
Answer:
It's oxygen, nitrogen forms several oxides, including nitrous oxide.
Explanation:
Hope this helps you out for sure!
Which of the following choices could be an isomer of a compound with an empirical formula of C₂H₆O₂?
C₄H₉O₄
C₄H₁₂O₄
CHO
CH₂O
Answers
Considering the definition of empirical and molecular formula, the isomer of a compound with an empirical formula of C₂H₆O₂ is C₄H₁₂O₄.
Definition of empirical formulaThe empirical formula is the simplest expression to represent a chemical compound, which indicates the elements that are present and the minimum proportion in whole numbers that exist between its atoms, that is, the subscripts of chemical formulas are reduced to the most integers. small as possible.
Molecular formulaThe molecular formula is the chemical formula that indicates the number and type of different atoms present in the molecule. The molecular formula is the actual number of atoms that make up a molecule.
The molecular formula of a compound can be the same as its empirical formula or a multiple of it. So by simplification, the simplest possible integers are found, so as to find the empirical formula.
Isomer of a compound with an empirical formula C₂H₆O₂The given isomer of a compound is C₄H₁₂O₄. For this isomer, simplifying (dividing by 2) the corresponding ratios between the elements, you get the empirical formula C₂H₆O₂.
In summary, the isomer of a compound with an empirical formula of C₂H₆O₂ is C₄H₁₂O₄.
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Difference between atomic number and atomic weight?
Answers
Answer:
Atomic number refers to the number of electrons or number of protons, both of which are the same. Atomic weight refers to the total mass of protons and neutrons in an atom, which are focused in the nucleus of the atom (and take most of the mass).
can someone help me pls
Answers
Answer:
I dont understand what the question means
Explanation:
which outcome occurs as a multicellular organism develops
Answers
Answer:
A multicellular organism develops from a single cell (the zygote) into a collection of many different cell types, organized into tissues and organs. Development involves cell division, body axis formation, tissue and organ development, and cell differentiation (gaining a final cell type identity).
Explanation:
Why does it mean by methane molecule is symmetrical?
Answers
A methane molecule (CH4) is considered symmetrical because it possesses a symmetric structure and exhibits symmetry operations.
Symmetry refers to a balanced arrangement of elements that can be divided into equal parts by a plane, axis, or center. In the case of methane, it exhibits several symmetrical characteristics.
Firstly, methane has a tetrahedral molecular geometry, with the carbon atom at the center and four hydrogen atoms positioned around it. This geometry ensures that the molecule is symmetrical in terms of its spatial arrangement.
Each hydrogen atom is located at one of the vertices of the tetrahedron, forming equal angles and distances with respect to the central carbon atom. This symmetry is maintained regardless of the orientation of the molecule.
Additionally, methane possesses rotational symmetry. It can be rotated around any of the carbon-hydrogen bonds, and the molecule will retain its overall appearance.
The symmetry of methane arises from its molecular structure and the equal distribution of electron density around the central carbon atom. The four hydrogen atoms are bonded to the carbon through sigma bonds, which have a cylindrical symmetry. This balanced arrangement of the atoms contributes to the overall symmetry of the molecule.
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