Water breaks down into hydrogen and oxygen: It is a decomposition reaction as a single substance decomposes to give two products.
[tex]H_2O \rightarrow H_2 +\frac {1}{2}O_2[/tex]
Leaves make starch using chlorophyll and carbon dioxide: Synthesis reaction: as the synthesis reaction involves two or more than two reactants which join together to result into a single main product along with the formation of simple by products.
[tex]6CO_2 + 6H_2O \rightarrow C_6H_{12}O_6 + 6O_2[/tex]
Food burns in oxygen gas and releases a lot of energy: Combustion: Combustion process involves the use of oxygen to give products along with release of energy.
[tex]C_6H_{12}O_6 + 6O_2\rightarrow 6CO_2 + 6H_2O[/tex]
Adding vinegar (acid) to baking soda (alkali) gives a product that is neither acidic nor alkaline: Neutralization: acetic acid in vinegar reacts with soda (base) to give salt (neutral) and .
[tex]CH_3COOH + NaHCO_3\rightarrow CH_3COONa +H_2O + CO_2[/tex]
Answer:
water breaks down - decomposition
leaves make starch - synthesis
food burns in oxygen gas - combustion
adding vinegar - neutralization
I took the test, and this was right
