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podryga [215]
1 year ago
14

Which two reactants make Calcium carbonate?

Chemistry
2 answers:
Norma-Jean [14]1 year ago
3 0

Impossible to form from given reactants

Explanation:

Only sodium has carbonate ion here .so only possible way to displace carbonate is to use potassium

When sodium carbonate and Potassium iodide react with each other double displacement reaction occurs

As potassium is powerful than sodium it displaces sodium to form potassium carbonate .

Then you have to use water and then you can use calcium suppliment .

Debora [2.8K]1 year ago
3 0

Answer:

  • Calcium chloride
  • Sodium carbonate

Explanation:

The reaction :

<u>CaCl₂ + Na₂CO₃ ⇒ CaCO₃ + 2NaCl</u>

<u />

This is clearly an example of a displacement reaction, where sodium displaces calcium in calcium chloride to form sodium chloride, and we are left with calcium carbonate.

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What factors affect the dynamic state of equilibrium in a chemical reaction and how?
yanalaym [24]

Answer:

Only changes in temperature will influence the equilibrium constant K_c. The system will shift in response to certain external shocks. At the new equilibrium Q will still be equal to K_c, but the final concentrations will be different.

The question is asking for sources of the shocks that will influence the value of Q. For most reversible reactions:

  • External changes in the relative concentration of the products and reactants.

For some reversible reactions that involve gases:

  • Changes in pressure due to volume changes.

Catalysts do not influence the value of Q. See explanation.

Explanation:

\displaystyle K_c = {e}^{\Delta G/(R\cdot T)}.

Similar to the rate constant, the equilibrium constant K_c depends only on:

  • \Delta G the standard Gibbs energy change of the reaction, and
  • T the absolute temperature (in degrees Kelvins.)

The reversible reaction is in a dynamic equilibrium when the rate of the forward reaction is equal to the rate of the backward reaction. Reactants are constantly converted to products; products are constantly converted back to reactants. However, at equilibrium Q = K_c the two processes balance each other. The concentration of each species will stay the same.

Factors that alter the rate of one reaction more than the other will disrupt the equilibrium. These factors shall change the rate of successful collisions and hence the reaction rate.

  • Changes in concentration influence the number of particles per unit space.
  • Changes in temperature influence both the rate of collision and the percentage of particles with sufficient energy of reaction.

For reactions that involve gases,

  • Changing the volume of the container will change the concentration of gases and change the reaction rate.

However, there are cases where the number of gases particles on the reactant side and the product side are equal. Rates of the forward and backward reaction will change by the same extent. In such cases, there will not be a change in the final concentrations. Similarly, catalysts change the two rates by the same extent and will not change the final concentrations. Adding noble gases will also change the pressure. However, concentrations stay the same and the equilibrium position will not change.

8 0
3 years ago
Anybody can help? <br> - 20 points
strojnjashka [21]

Answer:

I think its carbon because of all the chemicals being used in that air.

7 0
3 years ago
How many water molecules are created when 32 grams of oxygen react completely with 4.0 grams of hydrogen?
ch4aika [34]

Answer:

d. 1.2 × 1024

Explanation:

From the equation of reaction

2H2 + O2= 2H2O

i.e 2mole(4g) of hydrogen requires 1 mole(32g) of oxygen to produce 2mole (2×6.02×10^23 molecules) of H2O= 1.2×20^24 molcules of water.

NB: 1 mole of H2O contains 6.02×10^23 molecules of H2O

3 0
3 years ago
Vitamin D has a percent composition of 42.98% C, and 57.02% H. Its molecular
Alex73 [517]

Answer:

Dont use alot of points

Explanation:

people scam like me and ay the wrong answer and get the points :|

3 0
3 years ago
Which of the following elements is the most reactive?
mezya [45]

Answer:

A

Explanation:

3 0
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