Question

❥︎carbon dioxide turns ___ blue litmus red.
❥︎Endothermic reactions are characaterised by ___ of energy.

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Answer 1

Explanation:

However, a solution of carbon dioxide will turn blue litmuspaper red, which implies that a carbon dioxide solution is acidic. You can get the same result by exposing carbon dioxide to moistlitmus paper--the gas will react with the moisture to produce an acidic solution, thus turning blue litmus paper red

Answer 2

Answer:

explain 1) However, a solution of carbon dioxide will turn blue litmus paper red, which implies that a carbon dioxide solution is acidic. You can get the same result by exposing carbon dioxide to moist litmus paper--the gas will react with the moisture to produce an acidic solution, thus turning blue litmus paper red.

2) all chemical reactions involve the transfer of energy. Endothermic processes require an input of energy to proceed and are signified by a positive change in enthalpy. Exothermic processes release energy upon completion, and are signified by a negative change in enthalpy.