Answer:
Explanation:
Which best represents the reaction of calcium and zinc carbonate (ZnCO3) to form calcium carbonate (CaCO3) and zinc? Ca → ZnCO3
2 answers:
Answer : The correct option is,
Explanation :
Displacement reaction : It is a chemical reaction in which a most reactive element displaces the least reactive element easily from its compound.
In this, A is more reactive element and B is less reactive element.
The given balanced chemical reaction will be,
In this reaction, calcium displace the zinc element easily because calcium is more reactive element than the zinc.
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Answer:- 544.5 mL of water need to be added.
Solution:- It is a dilution problem. The equation used for solving this type of problems is:
where, is initial molarity and
is the molarity after dilution. Similarly,
is the volume before dilution and
is the volume after dilution.
Let's plug in the values in the equation:
Volume of water added = 907.5mL - 363mL = 544.5 mL
So, 544.5 mL of water are need to be added to the original solution for dilution.