Question

Calcite (the main mineral in limestone) is made of calcium carbonate (CaCO3). Dolomite, a related mineral, is made of magnesium carbonate (MgCO3). What happens if a geologist drips a small amount of vinegar (acetic acid) onto a sample of dolomite?

Answer 1

Answer: CO₂ will be formed, with the consequent fizzing effect.

Explanation:

1) Look at the chemical reaction that happens between magnesiumm carbonate and vinegard

MgCO₃(aq) + CH₃COOH(l) → CO₂ (g) + MgCOOH(aq) (it is not balance as it is only to show the products formed not to make calculations).

2) Then you see that CO₂ is evolving in the form of gas. That will cause the formation of bubbles (fizzing).

Answer 2

Dolomite is an anhydrous magnesium carbonate mineral that reacts with acetic acid (vinegar) to produce fizzing because of the carbon dioxide gas produced.

What is effervescence?

Effervescence is a fizz or release of bubbles of gases when it reacts with another substance. Carbon dioxide is released with a fizzing effect.

The reaction between dolomite and vinegar is shown as:

$\rm MgCO_{3}(aq) + 2 CH_{3}COOH(l) \rightarrow CO_{2} (g) + H_{2}O + Mg(CH_{3}COO)_{2}$

From the reaction, it can be said that the release of carbon dioxide results in effervescence or fizz.

Therefore, a drop of acetic acid on dolomite results in effervescence.

Learn more about effervescence here:

https://brainly.com/question/27158521

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