The equation for the acid-base reaction that takes place when nitric acid (HNO3) dissolves in water (H2O) is:
HNO3(aq) + H2O(l) → H3O+(aq) + NO3-(aq)
What makes an acid strong?When a strong acid like HNO3 is dissolved in water, it completely dissociates into its ions. The HNO3 molecule transfers a proton (H+) to a water molecule, which acts as a base by accepting the proton. The result is the formation of hydronium ion (H3O+) and nitrate ion (NO3-):
HNO3(aq) + H2O(l) → H3O+(aq) + NO3-(aq)
The hydronium ion (H3O+) is an important species in acidic solutions and is responsible for the acidic properties of the solution. It can donate a proton to a base, thus catalyzing acid-catalyzed reactions. The nitrate ion (NO3-) is the conjugate base of nitric acid and is itself a weak base.
The state symbols "(aq)" and "(l)" indicate that the reactants and products are in solution and liquid phases, respectively. In other words, HNO3 is in the form of an aqueous solution, meaning it is dissolved in water. The water molecule is also in the liquid phase, as it is not a gas or a solid in this reaction.
Learn more about strong acids
brainly.com/question/31143763
#SPJ11
HELP THIS IS DUE BY 11:59 TONIGHT ITS CURRENTLY LIKE 11:40??
identify: one herbivore, one carnivore, one omnivore, and one decomposer.
herbivore: cow
carnivore: lion
omnivore: bear
decomposer: water mold
Answer:
rabbit, kingfisher,lizard, fungi
Explanation:
hrbivore is an organism which feeds on plants. carnivore is also an organism that feeds on other organism. omnivore is also an organism that feeds on other organisms. Decomposers arsle organisms that recycle nutrients.
when heated, potassium reacts with atmospheric oxygen to give k2o. give the formula of the product that is formed when lithium reacts with oxygen in the presence of heat.
When lithium is heated in the presence of oxygen, it undergoes a redox reaction to form lithium oxide,\(Li$_2$O\). This reaction involves the transfer of electrons from the lithium atoms to the oxygen atoms to form a stable compound.
The balanced chemical equation for this reaction is:
\(4 Li + O$_2$ → 2 Li$_2$O\)
In this reaction, four lithium atoms react with one molecule of oxygen to produce two molecules of lithium oxide. Lithium oxide is a white crystalline solid that is insoluble in water and is a powerful reducing agent.
It is commonly used in the production of ceramics, glasses, and lithium-ion batteries. The formation of lithium oxide is an important reaction, and it is utilized in many industrial and technological processes.
To learn about lithium
https://brainly.com/question/1439744
#SPJ4
this is the chemical formula for methyl tert-butyl ether (the clean-fuel gasoline additive mtbe): a chemical engineer has determined by measurements that there are moles of hydrogen in a sample of methyl tert-butyl ether. how many moles of oxygen are in the sample? round your answer to significant digits.
To determine the number of moles of oxygen in a sample of methyl tert-butyl ether (MTBE), we first need to know the chemical formula of MTBE. The chemical formula for MTBE is C5H12O.
From the formula, we can see that there is only one atom of oxygen in each molecule of MTBE. Therefore, the number of moles of oxygen in the sample is also equal to the number of moles of MTBE.
Since the number of moles of hydrogen in the sample is not given, we cannot calculate the number of moles of oxygen. we first need to know the chemical formula of MTBE. The chemical formula for MTBE is C5H12O. We would need that information to proceed with the calculation.
To know more about oxygen visit:
brainly.com/question/31967154
#SPJ11
How does a liquid change as it is moved from one container to another?
When liquid is moved from one container to another, its shape, level, temperature, and composition may change depending on the properties of liquid and containers involved.
How does a liquid change as it is moved from one container to another?When liquid is moved from one container to another, its shape and volume may change depending on the properties of liquid and the containers involved.
If liquid is poured from one container to another, it may change its shape to fit the new container's shape. For example, if liquid is poured from a wide container to a narrow one, it will take the shape of the new container and become taller and narrower.
To know more about state change, refer
https://brainly.com/question/5217167
#SPJ1
QUESTION TWO: MEDICAL ISOTOPES lodine 131, written ¹1, is a radioactive isotope used in medicine. lodine 131 decays to Xenon (Xe) by emitting a beta particle. a. (i) What is a beta particle? (ii) Com
Iodine-131 (131 I, I-131) is a radioactive isotope used in medicine. It decays to Xenon (Xe) by emitting a beta particle, and its count rate decreases by half every 5.45 minutes, with a half-life of approximately 327 seconds.
a. (i) A beta particle is a high-energy electron or positron that is emitted from the nucleus during radioactive decay. It is denoted by the symbol β.
(ii) Alpha particles are positively charged and consist of two protons and two neutrons (helium nucleus), while beta particles are negatively charged electrons or positively charged positrons. Beta particles have a higher penetration ability compared to alpha particles because they have a smaller mass and carry less charge. This allows them to travel further and penetrate deeper into materials before being stopped or absorbed.
b. (i) Isotopes of iodine have the same number of protons, which defines the element. Iodine-131 and other iodine isotopes differ in the number of neutrons in their nuclei.
Same: Isotopes of iodine have the same number of protons (53) in their nuclei, which defines them as iodine.
Different: Iodine-131 has a different number of neutrons (78) compared to other isotopes of iodine, which have different neutron numbers.
c. To calculate the count rate of the radiation produced by the radioactive sample, we subtract the background count rate from the total count rate.
(i) Count rate of radiation from the sample = Total count rate - Background count rate
Given:
Background count rate = 15 counts per second
Total count rate at the start = 168 counts per second
Total count rate after 7 minutes = 53 counts per second
Count rate of radiation from the sample at the start = 168 - 15 = 153 counts per second
Count rate of radiation from the sample after 7 minutes = 53 - 15 = 38 counts per second
(ii) To calculate the half-life of the radioactive sample, we can use the formula:
\(\begin{equation}t_{1/2} = \frac{t \log(2)}{\log(N_0/N_t)}\)
where t1/2 is the half-life, t is the time interval (7 minutes = 420 seconds), N0 is the initial count rate, and \(N_t\) is the count rate after the given time interval.
Using the given data:
\(\[t_{1/2} = \frac{420 \log(2)}{\log(168/53)}\]\)
t1/2 ≈ 327 seconds or 5.45 minutes
Therefore, the half-life of the radioactive sample is approximately 327 seconds or 5.45 minutes.
To know more about the radioactive sample refer here :
https://brainly.com/question/30753100#
#SPJ11
Complete question :
QUESTION TWO: MEDICAL ISOTOPES lodine 131, written ¹1, is a radioactive isotope used in medicine. lodine 131 decays to Xenon (Xe) by emitting a beta particle. a. (i) What is a beta particle? - (ii) Compare the charges of alpha and beta particles and explain why beta particles have a higher penetration ability. b. (i) Describe how the nuclei of isotopes of iodine are the same as iodine-131, and how they are different. Same: Different: (i) Calculate the number of neutrons in iodine 131. The low-level radiation in our environment is called the background radiation. Sarah measures the background radiation and finds that it is 15 counts per second. This is the same, day after day. Sarah now measures the radiation from a radioactive sample. The count rate she measures includes background radiation. When she starts her measurement the count rate from the sample, including background radiation, is 168 counts per second. After 7 minutes this count rate has fallen to 53 counts per second. c. Explain how the count rate of the radiation produced by the radioactive sample can be calculated from the above information. (i) Calculate the count rate of the radiation produced by the radioactive sample. Time Count rate from the sample only (counts per second) At the start After 7 min (ii) Use your data from the table to calculate the half-life of the radioactive sample.
how much energy is needed to convert 120g of ice at -35°C to steam at 150°C?
A drop of gasoline has a mass of 22 mg and a density of 0. 754 g/cm3. What is its volume in cubic centimeters?.
A drop of gasoline has a mass of 22 mg and a density of 0. 754 g/cm³. The volume in cubic centimeters is 0.0291 cm³
By dividing a mass value, such as kg, by a volume value, such as m3, the density is determined. One of a substance's physical characteristics is its density, which measures its mass per unit volume.
The following formula can be used to determine density:
Density = mass/volume
Thus,
volume = mass/density
Mass=22 mg=0.022 grams
Density=0.754g/cm^3
Using the preceding equation as a substitute, we can determine the volume as follows:
volume = mass/density
volume = 0.022/0.754 = 0.0291 cm³
Therefore, The volume is 0.0291 cm³
Learn more about density at brainly.com/question/29775886
#SPJ4
What is the balanced form of the chemical equation shown below?
Cr(s) + Cl2(g) → CrCl3(s)
The balanced equation for the chemical equation given in the question above is: 2Cr(s) + 3Cl₂(aq) → 2CrCl₃(s)
How do i balance equation?The following data were obtained from the question:
Cr(s) + Cl₂(aq) → CrCl₃(s)Balanced equation =?Chemical equations are generally balanced by ensuring that the number of atoms of each element present on both sides of the equation are equal.
Now, we shall balance the equation given from the question as follow:
Cr(s) + Cl₂(aq) → CrCl₃(s)
There are 2 atoms of Cl on the left side and 3 atoms on the right side. It can be balanced by writing 2 before CrCl₃ and 3 before Cl₂ as shown below:
Cr(s) + 3Cl₂(aq) → 2CrCl₃(s)
There are 2 atoms of Cr on the right side and 1 atom on the left side. It can be balanced by writing 2 before Cr as shown below:
2Cr(s) + 3Cl₂(aq) → 2CrCl₃(s)
Thus, the equation is balanced.
Learn more about balancing equation:
https://brainly.com/question/12192253
#SPJ1
What is the mass of an object when the volume is 50.0mL and the density is 1.5g/mL
dentify the reaction type for each generic chemical equation.
A + B → AB:
This would be a synthesis reaction
how many moles of calcium in 0.5 mole ca3(po4)2
There are 1.5 moles of calcium in 0.5 mole Ca3(PO4)2.
How to determine the number of moles of calcium in 0.5 mole Ca3(PO4)2First we need to first find the molar mass of Ca3(PO4)2:
Molar mass of Ca3(PO4)2 = (3 x molar mass of Ca) + (2 x molar mass of PO4)
= (3 x 40.08 g/mol) + (2 x (1 x 30.97 g/mol + 4 x 16.00 g/mol))
= 310.18 g/mol
Next, we can use the following mole ratio:
3 moles of Ca / 1 mole of Ca3(PO4)2
This means that for every 1 mole of Ca3(PO4)2, there are 3 moles of Ca.
Therefore, the number of moles of calcium in 0.5 mole Ca3(PO4)2 is:
0.5 mole Ca3(PO4)2 x (3 moles of Ca / 1 mole of Ca3(PO4)2) = 1.5 moles of Ca
Therefore, there are 1.5 moles of calcium in 0.5 mole Ca3(PO4)2.
Learn more about molar mass here : brainly.com/question/22503632
#SPJ1
In an oxoacid such as h2so4, ionizable hydrogen atoms are those bonded to:.
In an oxoacid such as \(H2SO4\), ionizable hydrogen atoms are those bonded to oxygen atoms.
In \(H2SO4\), the two hydrogen atoms bonded to the oxygen atoms are ionizable, meaning they can dissociate from the molecule in water to form \(H+\) ions. This makes\(H2SO4\) a strong acid, as it can readily donate protons in solution.
The sulfur atom in \(H2SO4\) is also bonded to four oxygen atoms, giving it a tetrahedral shape. The electronegativity difference between the sulfur and oxygen atoms in the molecule creates a polar covalent bond, which leads to the acidity of the molecule.
In general, oxoacids have ionizable hydrogen atoms bonded to oxygen atoms, and the number of ionizable hydrogen atoms is determined by the oxidation state of the central atom and the number of oxygen atoms bonded to it.
To know more about oxoacid refer to-
https://brainly.com/question/28306033
#SPJ11
Calculate the mass of carbon and the mass of hydrogen in 82.0 g of propane.
Mass of the carbon is 7.44 g while the mass of the hydrogen is 0.4 g.
What is the mass of the carbon?We have to know that we can be able to obtain the masses of each of the atoms that can be found in the molecule that is called propane. You have to note that propane is a hydrocarbon and this means that the only two atoms there are carbon and hydrogen.
We then have;
Number of moles of the propane = mass/molar mass = 82.0 g/44 g/mol
= 1.86 moles
Number of moles of the carbon = 1.86 moles/3 = 0.62 moles
Mass of carbon = 0.62 mol * 12 g/mol = 7.44 g
Number of moles of hydrogen = 1.62/8 = 0.2 moles
Mass of the hydrogen = 0.2 moles * 2 g/mol = 0.4 g
Learn more about moles:https://brainly.com/question/26416088
#SPJ1
How many atoms are in 75.4 moles of Copper?
Answer:
No = Avagardro's number = 6.02 x 10^23
No.of atoms = no.of moles x No x atomicity
= 75.4 x 6.02 10^23 x 1
= 453.908 x 10^23 atoms .
Explain in your own words what biodiversity is.
Answer:
Biodiversity: Bio meaning life and diversity meaning variety. This word refers to the different variations of life that can be found on Earth (plants, animals, micro-organisms, fungi).
Explanation:
I NEED HELP ASAP ILL GIVE 10 POINTS
Which is NOT a physical property?
A. hardness
B.boiling point
C.ability to conduct electricity
D.ability to combine with oxygen
Answer:
ability to combine with oxygen
abality to combine with oxyyen
1. What is the definition of a chemical property?
Answer:
that can be established only by changing a substance's chemical
Explanation:
Answer:
A chemical property is a characteristic of a substance abserved in chemical reactions.
Explanation:
Some major chemical properties include flammability, toxicity, heat of combustion, pH value, rate of radioactive decay, and chemical stability.
Heat + NHâCl (s) â NHâ (g) + HCl (g)
if heat is added to the reaction, will the reaction shift to the right, left, or no change
When heat is added to the reaction, the reaction will shift to the right.
The given reaction represents the thermal decomposition of ammonium chloride (NH4Cl) into ammonia (NH3) and hydrogen chloride (HCl) gases. This reaction is endothermic, meaning that it requires heat as an input to proceed. The balanced chemical equation is:
NH4Cl(s) → NH3(g) + HCl(g)
Now, if heat is added to the reaction, it means that the temperature of the system is increased. According to Le Chatelier's principle, a change in temperature can affect the equilibrium position of a reaction. This principle states that if a system at equilibrium is subjected to a stress, then the system will adjust itself to partially counteract the stress and re-establish a new equilibrium position.
In the case of an endothermic reaction, an increase in temperature is considered a stress on the system. To partially counteract this stress, the equilibrium will shift in the direction that absorbs heat. This means that the reaction will shift to the right to consume more NH4Cl and produce more NH3 and HCl gases. Therefore, the answer to the question is that if heat is added to the reaction, the reaction will shift to the right.
In summary, the addition of heat to the thermal decomposition of ammonium chloride will cause the equilibrium to shift to the right, resulting in more ammonia and hydrogen chloride gases being produced.
To know more about heat click on below link:
https://brainly.com/question/22762252#
#SPJ11
the reaction described in part a required 3.92 l of magnesium chloride. what is the concentration of this magnesium chloride solution? express your answer with the appropriate units.
The concentration of this magnesium chloride solution when the reaction described in part a required 3.92 l of magnesium chloride is 0.451 M
M(AgNO3)=0.18 M
V(AgNO3)=1.92 L
V(MgCl2)=3.83 L
According to the balanced reaction:
We can write as follows;
1*number of mol of AgNO3 =2*number of mol of MgCl2
1*M(AgNO3)*V(AgNO3) =2*M(MgCl2)*V(MgCl2)
1*0.18*1.92 = 2*M(MgCl2)*3.83
M(MgCl2) = 0.0451 M
A balanced chemical equation follows the law of conservation of mass.It contains the same number of atoms on either side.These are in accordance with laws of chemical combination and is a significant in chemical reactions.Learn more about mass conservation law at:
brainly.com/question/28711001
#SPJ4
Which molecule is polar?
A. CO2
B. PF3
C. CH4
D. BF3
Murcury is the only metal at room temperature. Its density is 13.6g/mL. How many grams of murcury will occupy a volume of 95.8mL? Answer in scientific notation.
Answer:
The answer is 1.30288 × 10³ gExplanation:
The mass of a substance when given the density and volume can be found by using the formula
mass = Density × volumeFrom the question
volume = 95.8mL
density = 13.6g/mL
We have
mass = 13.6 × 95.8 = 1302.88
We have the final answer as
1.30288 × 10³ gHope this helps you
What is the concentration of H+ at pH 4 in moldm-3 ?
Answer:
The pH of a solution is a measure of its concentration of hydrogen ions. The higher the concentration of H + ions in an acidic solution, the lower the pH. A pH of 1 represents a hydrogen ion concentration of 0.1 mol/dm 3.
...
pH and hydrogen ion concentration.
Concentration pH
0.001 mol/dm 3 3
0.0001 mol/dm 3 4
Explanation:
Answer:
0.0001
That the answer your welcom
State the law of multiple proportions.
Answer:
Law of Multiple proportion states that when two elements combine to form more than one compound, the mass of one element, which combines with a fixed mass of the other element, will always be ratios of whole numbers. For example, let us assume 2 molecules CO (carbon monoxide) and CO2(carbon dioxide).
Explanation:
Question 18 of 20
Which two options are forms of kinetic energy?
A. Sound energy
B. Chemical energy
C. Gravitational energy
D. Nuclear energy
E. Thermal energy
SUBMI
The two options are forms of kinetic energy are : the sound energy and the thermal energy.
The two forms of kinetic energy are : the sounds energy and the thermal energy. The kinetic energy is the type of energy that an object posses because of its motion. The five forms of the kinetic energy are : The mechanical energy , the electrical energy , the light energy , the thermal energy and the sound energy. so, the kinetic energy is the energy due to the motion of object.
Thus, The two options are forms of kinetic energy are : the sound energy and the thermal energy.
To learn more about kinetic energy here
https://brainly.com/question/26472013
#SPJ1
i need help on this plsss
Answer:
Ionic Compound
Explanation:
1) NaBr
2) CaCl2
3) MgS
4) AlO
5) Li3P
6) Cs3N
7) KI
8) BaF2
9) RbNO2
10) BaO
11) Potassium oxide
12) Magnesium iodide
13) Aluminum chloride
14) Calcium bromide
15) Sodium nitride
16) Lithium fluoride
17) Barium phosphide
18) Dicesium sulfide
19) Strontium fluoride
20) Sodium chloride
Hope this helps!!
What is the molar mass of diphosphorous heptasulfide
Answer:
347.6995462
Phosphorus heptasulfide, free from yellow and white phosphorus appears as light-yellow crystals, light-gray powder, or fused solid. Melting point 310°C.
...
Determine the empirical formula for :aluminum compound containing oxygen (alxoy) if 4.78g of al reacts and the total mass after reacting is 6.67g,
The empirical formula for a aluminum compound containing oxygen (AlxOy), if 4.78g of Al reacts is Al3O2.
How to calculate empirical formula?According to this question, 4.78g of Al reacts with oxygen to form a total mass of 6.67g. This means that the mass of oxygen that reacted is 6.67 - 4.78 = 1.89g
Aluminum = 4.78gOxygen = 1.89gFirst, we convert each mass to moles
Al = 4.78 ÷ 27g/mol = 0.17molO = 1.89 ÷ 16g/mol = 0.12molNext, we divide each value by the smallest
Al = 0.17 ÷ 0.12 = 1.42O = 0.12 ÷ 0.12 = 1Multiply each value by 2
Al = 2.8 = 3
O = 2
Therefore, the empirical formula for a aluminum compound containing oxygen (AlxOy), if 4.78g of Al reacts is Al3O2.
Learn more about empirical formula at: https://brainly.com/question/11588623
Word Search Find the Elements
Find how many you can! (At least 40 words?)
75 words!
Go to "Table of Elements" to find the answer key. Ignore the last two rows.
Answer: Click the puzzle pdf I did some of the words but if you need more let me know because I will go back in and do more!
Explanation:
Determine the coordination number for each structure.
a. Gold
b. Ruthenium
c. Chromium