Which of the following equations demonstrates an actual chemical reaction that forms a new substance? a. zn + 2hcl → 2ncl2 + h2 b. h2o + nacl → h2o c. zn + al + cu → zn + cu + al d. c12h22o11 + h2o → h2o + c12h22o11

A

Explanation:

The first option is the only option where new products are formed.

In the D option no new product is formed.

Same goes with option C.

In B no new products are formed.

Change is said to be taken place only with formation of new products from reactants.

answer///carbon;