If you have 4 moles of CaCl2 how many moles of HCI can you make

Equation- CaCl2 +2H2O= Ca(OH)2+2HCl

Answers

Answer 1

Answer:

If you hace 4 moles of CaCl₂, you can make 8 moles of HCl.

Explanation:

The balanced equation is

CaCl₂ + 2 H₂O → Ca(OH)₂ + 2 HCl

By reaction stoichiometry (that is, the relationship between the amount of reagents and products in a chemical reaction) , the following amounts of each compound participate in the reaction:

CaCl₂: 1 mole H₂O: 2 molesCa(OH)₂: 1 mole HCl: 2 moles

Then you can apply the following rule of three: if by stoichiometry 1 mole of CaCl₂ forms 2 moles of HCl, 4 moles of CaCl₂ form how many moles of HCl?

[tex]moles of HCl=\frac{4 moles of CaCl_{2}*2 moles of HCl }{1mole of CaCl_{2}}[/tex]

moles of HCl= 8

If you hace 4 moles of CaCl₂, you can make 8 moles of HCl.


Related Questions

2.91 moles of aluminum are how many grams(with work)

Answers

2.91 mol Al * ( 26.982 g Al / 1 mol Al) = 78.518 grams
It will be 78.51627558 bec one gram of Al equal 0.037062379468509

identify the type of the bond​

Answers

Answer:

it's sodium chloride I believe

Explanation:

how to balance _h2s+ _o2 = _h2o+ _s

Answers

Answer:

2H₂S + 1O₂ → 2H₂O + 2S

Explanation:

SOLUTION :-

Balance it by using 'hit & trial' method , and you'll get the answer :-

2H₂S + 1O₂ → 2H₂O + 2S

VERIFICATION :-

In reactant side of equation :-

Number of atoms in H = 2×2 = 4Number of atoms in S = 2×1 = 2Number of atoms in O = 1×2 = 2

In product side of equation :-

Number of atoms in H = 2×2 = 4Number of atoms in O = 2×1 = 2Number of atoms in S = 2×1 = 2

Number of atoms of each element is equal in both reactant & product side of equation. Hence , the equation is balanced.

Which type of circuit has more than one path?

Answers

Answer:

parallel circuit

Explanation:

Hope this is right!!


Should American drugmakers have to limit acetaminophen pills sold over-the-counter?

Answers

Answer: The agency requires all prescription drugs containing acetaminophen to carry a black box warning that an overdose can result in liver transplant or death. For over-the-counter Tylenol and its generic equivalents, the FDA requires no warning that overdose can be fatal.

Explanation:

^^^^

If the half-life of a decaying isotope is 10 years, which statement is true after
20 years?

Answers

Answer:

A. There are more daughter nuclei than parent nuclei in a sample.

Explanation:

There are more daughter nuclei than parent nuclei in a sample. Hence, option A is correct.

What is half-life?

The half-life of a radioactive element or isotope is the time taken for half of the substance to decay.

If the half-life of a decaying isotope is 10 years, after 8 years, less than the total mass of the original isotope will decay since 8 years is less than 10 years.

Therefore, we can conclude that, if the half-life of a decaying isotope is 10 years, after 8 years, there will be more parent nuclei than daughter nuclei in a sample.

Learn more about half-life here:

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Magnesium metal reacts with oxygen according to the equation: Mg(s) + O2(g) → 2MgO2(s)

Which of the following would increase the rate of the reaction?

grinding the magnesium metal into a fine powder

packing the magnesium tightly at the bottom of the container

forming the magnesium metal into the shape of a sphere

forming the magnesium metal into single, large cube

Answers

Answer:

Grinding the magnesium metal into a fine powder. I took the test and got it right.

2 H2(g) + O2 (g) --> 2 H20 (1)
How many moles of hydrogen gas do you need to make 2 moles of liquid water?

Answers

Answer:

4moles of hydrogen atoms

Explanation:

The second conversion factor reflects the number of atoms contained within each molecule. Two water molecules contain 4 hydrogen atoms and 2 oxygen atoms. A mole of water molecules contains 2 moles of hydrogen atoms and 1 mole of oxygen atoms.

calculate the ph of the solution [oh-] = 1x 10-11 m

a. 11.0

b. 12.0

c. 2.7

d. 3.0

Answers

Answer:

d. 3.0

Explanation:

First we calculate the pOH of the solution, using the following formula:

pOH = -log[OH⁻]pOH = -log[1x10⁻¹¹ M]pOH = 11.0

Using the pOH we can calculate the pH of the solution, keeping in mind the relationship between pH and pOH:

pH = 14.0 - pOHpH = 14.0 - 11.0pH = 3.0

The answer is option d.

A radioisotope has a half-life of 5 minutes. What fraction of material would remain after
half an hour?

Answers

It should be 1/32 after half an hour.

Is Ca +O2 ?-->CaO balanced ? explain why or why not

Answers

no. on the left side you will notice there is one Ca, and 2 oxygen. therefore on the right side there must be 1 Ca, and 2 oxygen. The correct answer would be Ca + O2 -> CaO2

KClO3 + H2SO4 ⇒ HClO4 + ClO2 + K2SO4 + H2O

is there a way to balance this?

Answers

Answer:

6KClO3 + 3H2SO4 → 2HClO4 + 4ClO2 + 3K2SO4 + 2H2O

Explanation:

It's a bit long because you will keep changing the coefficient to match both side.

What is the density of an object that has a mass of 350 g and a volume of 95 cm?? Would
this object float in water?

Answers

Answer:

Density= 3.68g/cm³

The object will sink in water

Explanation:

D=m/v

=350/95

=3.684

≈3.68g/cm³

Water= 1g/cm³

The object will sink in water because the object is denser than the water.

3.684g/cm³ is the density of an object that has a mass of 350 g and a volume of 95 cm³. The object will sink in water.

What is density?

The density of a material (volumetric density and specific mass) is its mass per unit volume. The most common sign for density is however the Roman letter D can be used as well. Density is defined mathematically as mass divided with volume.

The density of a pure material has the same numeric values just like its mass concentration. Various materials have varied densities, and density can be important in terms of buoyancy, purity, and packing.

D=m/v

=350/95

=3.684g/cm³

The object will sink in water

Therefore, 3.684g/cm³ is the density of an object that has a mass of 350 g and a volume of 95 cm³. The object will sink in water.

To learn more about density, here:

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How many molecules are in 10 grams of sugar?

Answers

Answer:

A sugar cube is supposed to be equivalent to a teaspoon of sugar. A teaspoon of sugar is about 4.2 g. Table sugar is composed of sucrose, which is a disaccharide of glucose and fructose, with a molar mass of 342.3 g/mol. This means a sugar cube contains (4.2 / 342.3 =) 0.0123 mol of sucrose, or (0.0123 x 6.022 x 10^23 =) 7.39 x 10^21 molecules of sucrose. As one molecule of sucrose contains one molecule of glucose and one molecule of fructose, then there about 7,400 million, million, million molecules of glucose in a sugar cube.

explanation:

HAHA d ko alam kung tama yan

what method is used to separate smoke particles from air

Answers

I don’t quite understand the question but i believe your answer would be using electrostatic precipitators

BRAINLIEST IF RIGHT WITH EXPLANATION
Oxygen is pumped into a tank at a pressure of 4.63 atm. After helium is pumped into the tank, the total pressure reaches 20.0 atm. What is the partial pressure of helium in the tank?

Answers

Answer:

15.37 atm

Explanation:

According to Dalton's law of partial pressure, the total pressure of a mixture of gases in the tank is a sum of the individual pressures of all the gases. Hence;

PT = P1 + P2 + P3 -----------

So;

Ptotal = Phelium + Poxygen

Poxygen = 4.63 atm

Ptotal = 20.0 atm

Phelium = 20.0 atm - 4.63 atm

Phelium = 15.37 atm

If you have 8 g of a radioactive element there will be Of the radioactive element left after one half life

Answers

Answer:

4g of the radioactive element present

Explanation:

Radioactive elements are atoms that are unstable in normal conditions and are converted in another different atoms.

1 half life express the time that is need to decay the half of the initial amount of the radioactive element.

If initially we have 8g of the radioactive element, after 1 life we will have 8g/2 =

4g of the radioactive element present

Biodiversity can be altered by __________.
Select one:

All of these

a fire in the ecosystem

unexpected changes in the climate of an ecosystem

a flood in the ecosystem

Answers

Should be all of the above (A)

what is Nylon 6-6 made of..?​

Answers

Answer:

nylon 66 is made of two monomers each containing 6 carbon atoms, hexamethylenediamine and adipic acid.

Which forward reaction shows an increase in entropy (disorder)?explain

A.H2(g) + CuO (s) --> H2O(l) + Cu(s)
B.HCl(g) + NH3(g) --> NH4Cl(s)
C.CaCO3(s) -> CaO(s) + CO2g)
D.H2O(g) + O2(g) --> 2H2O)

Answers

Explanation:

Entropy also increases when solid reactants form liquid products. Entropy increases when a substance is broken up into multiple parts. The process of dissolving increases entropy because the solute particles become separated from one another when a solution is formed. Entropy increases as temperature increases. S = entropy

k_{b} = Boltzmann constant

\ln = natural logarithm

\Omega = number of microscopic configurations

1. An Element is determined by the number of ________ and it’s nuclear ( Also known as atomic number).
2. Each chemical element is made up of only one kind of...

Answers

1. Proton
2. One type of atom

The enthalpy (AH) is +624.7 kJ for the following reaction. How would you classify this reaction? (Explain)

SiO2(g) + 3C(s) --> SIC(s) +2CO(g)

A.exothermic: heat is lost by the system
B.endothermic: heat is gained by the system
C.endothermic: heat is lost by the system
D.exothermic: heat is gained by the system

Answers

Answer: The reaction [tex]SiO_{2}(g) + 3C(s) \rightarrow SiC(s) + 2CO(g); \Delta H = +624.7 kJ[/tex] is classified as endothermic: heat is gained by the system.

Explanation:

A process or reaction in which heat is absorbed is called endothermic reaction.

For example, melting of ice is an endothermic process.

For an endothermic reaction the sign of [tex]\Delta H[/tex] is positive which means heat is gained by the system.

Here, the given reaction is as follows.

[tex]SiO_{2}(g) + 3C(s) \rightarrow SiC(s) + 2CO(g); \Delta H = +624.7 kJ[/tex]

A process or reaction in which heat is released is called exothermic reaction.

For example, combustion reaction, freezing of water etc are exothermic process.

For an exothermic reaction the sign [tex]\Delta H[/tex] is negative which means heat is lost by the system.

Thus, we can conclude that the reaction [tex]SiO_{2}(g) + 3C(s) \rightarrow SiC(s) + 2CO(g); \Delta H = +624.7 kJ[/tex] is classified as endothermic: heat is gained by the system.

If the attractive forces in a substance is much less than the
molecular motion, then the substance will be in_____ state.
A) Solid
B)Liquid
C)Gaseous
D)Both A&B

Answers

B) liquid is your answer

How much energy is required to raise the temperature of a 300.0

gram block of lead from 22.3°C to 59.9°C? The specific heat of lead is

0.129 J/gºC.

Answers

Answer:

Q = 1455.12 Joules.

Explanation:

Given the following data;

Mass = 300 grams

Initial temperature = 22.3

Final temperature = 59.9°C

Specific heat capacity = 0.129 J/gºC.

To find the quantity of energy;

[tex] Q = mcdt[/tex]

Where,

Q represents the heat capacity.

m represents the mass of an object.

c represents the specific heat capacity of water.

dt represents the change in temperature.

dt represents the change in temperature.

dt = T2 - T1

dt = 59.9 - 22.3

dt = 37.6°C

Substituting the values into the equation, we have;

[tex] Q = 300*0.129*37.6 [/tex]

Q = 1455.12 Joules.

The Lewis diagram for AlF3 is:
:F:
The electron-pair geometry around the Al atom in AlF3 is
There is/are
lone pair(s) around the central atom, so the geometry of AlF3 is
Submit Answer
Retry Entire Group
9 more group attempts remaining

Answers

Answer:

25,000 pairs

Explanation:

an organism that hunts other organisms for food is a
A. prey
B. predator
C. parasite
D. host

Answers

Answer:

B) a predator

The answer is B.predator

What type of erosion and deposition is not a major force in Texas

Answers

Best answers I could come up with
Gravity
Glaciers
Wind
Water

Lab: Thermal Energy Transfer
Directions

What is the purpose of the lab, the importance of the topic, and the question you are trying to answer?






Section III: Analysis and Discussion



What do the key results indicate?





























If you constructed graphs, what trends do they indicate in your data?

















Were there any problems with the experiment or the methods? Did you have any surprising results?









Section IV: Conclusions



What do the results tell you about your hypothesis(es)?









How do the data support your claim above?



















If you could repeat the experiment and make it better, what would you do differently and why?

Answers

Answer:

What do the key results indicate?

Key Results are the measures and milestones that indicate how you know you will accomplish our Objective.

If you constructed graphs, what trends do they indicate in your data?

A linear pattern is a continuous decrease or increase in numbers over time. On a graph, this data appears as a straight line angled diagonally up or down (the angle may be steep or shallow). So the trend either can be upward or downward.

Were there any problems with the experiment or the methods? Did you have any surprising results?

Yes, i was surprised and learn so much and it was no problem.

Section IV: Conclusions

What do the results tell you about your hypothesis(es)?

Results will tell you which hypothesis is true

How do the data support your claim above?

describe specific part of the procedure.

If you could repeat the experiment and make it better, what would you do differently and why?

If I were able to repeat the lab and do it differently I would try to do two different things to improve it. I would try to create the model in a simpler manner that allowed me to better see how the erosion factored in. I would also try to take more detailed notes on it if I were to repeat it.

Explanation:

what are the 5 similarities between acid and alkalis ​

Answers

Explanation:

Acids and alkalis both contain ions. Acids contain lots of hydrogen ions, which have the symbol H+. Alkalis contain lots of hydroxide ions, symbol OH-. Water is neutral because the number of hydrogen ions is equal to the number of hydroxide ions

Answer:

cids and bases both react with water and a lot of acids and bases are soluble in nature. Both acids and bases are electrolytes which means that they're good conductors of electricity. Acids and bases both produce ions in water solution. Acids release hydrogen ions (H+) whereas Bases release hydroxide ions (OH–).

Explanation:

In a sample of oxygen gas at room temperature, the
average kinetic energy
of all the balls stays constant. Which postulate of kinetic molecular theory
best explains how this is possible?

Answers

Answer: The Kinetic Molecular Theory of  Matter

Explanation: The answer is: B. Collisions between gas particles are elastic; there is no net gain or loss of kinetic energy.

The Kinetic Molecular Theory of  Matter

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