What mineral fizzes when in contact with hydrochloric acid

Calcite

Explanation:

Calcite, whose composition is CaCO3, has the amazing ability to fizz  in contact with hydrochloric acid.

From the geological point of view, this test is commonly performed to differentiate calcite from other minerals of similar color, brightness and habit. Do not confuse calcite with aragonite that also reacts in this way against HCl.

On the other hand we can analyze this experiment from the chemical point of view, since the following chemical reaction takes place:

CaCO3 + 2HCl -> CaCl2 + H2O + CO2

The products of the reaction are released in liquid form (water with dissolved CaCl2), and in bubbles of carbon dioxide gas.

the answer is 303.15 or 303

under a microscope, cancer cells may look very different from normal cells. they often have different sizes and some may be larger than normal while others are smaller. cancer cells are often abnormally shaped and the control centre of the cell (the nucleus) may have an abnormal appearance.

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