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Bezzdna [24]
3 years ago
14

___HCl + ___CaCO3 → ___CaCl2 + ___H2O + ___CO2

Chemistry
2 answers:
Otrada [13]3 years ago
7 0

<u>Answer:</u> The correct answer is Option C.

<u>Explanation:</u>

Every balanced chemical equation follows law of conservation of mass.

This law states that mass can neither be created nor be destroyed but it can only be transformed from one form to another.

In a chemical equation, number of individual atoms on reactant side must be equal to the total number of individual atoms on product side.

To balance the given unbalanced chemical equation, the chemical equation follows:

2HCl+CaCO_3\rightarrow CaCl_2+H_2O+CO_2

By Stoichiometry of the reaction,

2 moles of hydrochloric acid reacts with 1 mole of calcium carbonate to produce 1 mole of calcium chloride, 1 mole of water and 1 mole of carbon dioxide.

Hence, the correct answer is Option C.

guapka [62]3 years ago
4 0
The answer would be C

hope that helps
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Fill in the missing piece of the table​
djyliett [7]

Answer: The final volume V_2 is 263.09 ml

Explanation:

To calculate the final volume of the system, we use the equation given by Charles' Law. This law states that volume of the gas is directly proportional to the temperature of the gas at constant pressure.

Mathematically,

\frac{V_1}{T_1}=\frac{V_2}{T_2}

where,

V_1\text{ and }T_1 are the initial volume and temperature of the gas.

V_2\text{ and }T_2 are the final volume and temperature of the gas.

We are given:

V_1=156ml\\T_1=215^oC=(215+273)K=488K\\V_2=?\\T_2=550^0C=(550+273)K=823K

Putting values in above equation, we get:

\frac{156}{488}=\frac{V_2}{823}\\\\V_2=263.09ml

Thus final volume V_2 is 263.09 ml

5 0
3 years ago
If you have 3.50 moles of hydrogen and 5.00 moles of nitrogen to produce ammonia, which element is the reactant in excess? 3H2 +
kicyunya [14]

Answer:

nitrogen

Explanation:

The stoichiometry of the reaction says that H_{2} and  N_{2} react 3:1 to form 2 moles of  NH_{3}, so, if you have 3,5 moles of H, which is equal to 1,75 moles of  H_{2}, and 5 moles of N, which are equal to 2,5 moles of  n_{2}. only\frac{1,75 moles of H2}{3}=0.583 moles of  N_{2}, will react, leaving <em>1.917 moles of </em> N_{2} <em>unreacted</em>, and forming 0.583*2=1.166 moles of  NH_{3}

3 0
3 years ago
A chemist adds 405.0mL of a 0.79M sodium carbonate solution to a reaction flask. Calculate the millimoles of sodium carbonate th
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Answer:

320 mmol

Explanation:

405.0 mL * 1L/1000 mL = 0.4050 L

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0.79 mol/L * 0.4050 L=0.32 mol

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4 0
4 years ago
Which one is the right spot because it really does not make any sense at all (in my viewpoint).
FinnZ [79.3K]

Answer: The last layer

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5 0
2 years ago
Read 2 more answers
A set of aqueous solutions are prepared containing different acids at the same concentration: acetic acid, chloric acid and hydr
navik [9.2K]

Answer:

The solutions of hydrobromic acid and of chloric acid are the most electrically conductive.

Explanation:

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3 years ago
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