which pair of substances would most likely result in the production of a gas when reacting with an acid?\n…

which pair of substances would most likely result in the production of a gas when reacting with an acid?\n litmus and methyl orange\n base and salt\n metal and carbonate\n carbon dioxide and water

which pair of substances would most likely result in the production of a gas when reacting with an acid?\n litmus and methyl orange\n base and salt\n metal and carbonate\n carbon dioxide and water

Answer

Answer:

C. metal and carbonate

Explanation:

Step1: Analyze option A

Litmus and methyl - orange are indicators, not substances that produce gas with acid.

Step2: Analyze option B

A base reacts with an acid to form salt and water, not gas. A salt reacting with an acid may not necessarily produce gas.

Step3: Analyze option C

Metals react with acids to produce hydrogen gas. Carbonates react with acids to produce carbon - dioxide gas. So metal and carbonate are likely to produce gas when reacting with an acid.

Step4: Analyze option D

Carbon dioxide and water react to form carbonic acid, not the other way around when reacting with an acid to produce gas.