Which of the following is an example of a decomposition reaction? A. Zn + 2HCl → ZnCl2 + H2
B. CaCl2 + Na2CO3 → CaCO3 + 2Naci
C. 2NaCl → 2Na+ Cl2
D. H2 + Cl2 + 2HCI

C is your answer.

Explanation:

A decomposition reaction occurs when a single product breaks down into two or more simpler products.

AB → A + B

Hypertonic solution ... lost water

Explanation:

The cell is in a hypertonic solution because it lost water through osmosis and shrunk. A hypertonic solution contains more solute molecules compared to solvent molecules while the hypotonic solution has more solvent molecules than solute molecules.When a plant cell is placed in a hypertonic solution it loses water through osmosis and shrinks. An animal cell placed in a hypotonic solution absorbs water through osmosis, increases in size and then bursts. Plant cell, on the other hand, does not burst when placed in a hypotonic solution as it contains a cellulose cell wall.