Question

drag the tiles to the correct boxes to complete the pairs.
identify the type of chemical reaction that is described.
neutralization combustion
water breaks down into
hydrogen and oxygen. decomposition
leaves make starch using
chlorophyll and carbon dioxide. synthesis
food burns in oxygen gas
and releases a lot of energy.

Explanation:

• Combustion reactions involve a substance reacting with oxygen (like food burning in oxygen gas) and releasing energy.
• Neutralization is a reaction between an acid and a base. Since the problem here is about food burning in oxygen (not acid - base interaction), it's not neutralization.
• Decomposition is when a single compound breaks down into simpler substances (like water breaking into hydrogen and oxygen).
• Synthesis is when simpler substances combine to form a more complex one (like leaves making starch from simpler components).

Answer:

Food burns in oxygen gas and releases a lot of energy. → combustion