Question

1. identify name two methods that can be used to break down compounds into simpler substances. 27. classify classify each of these samples of matter as an element, a compound, or a mixture. a. table sugar b. tap water c. cough syrup d. nitrogen

Explanation:

For question 26, chemical - reactions like decomposition and electrolysis can break compounds into simpler substances. For question 27, table sugar is a compound as it has a fixed chemical formula ($C_{12}H_{22}O_{11}$), tap water is a mixture with water and dissolved substances, cough syrup is a mixture with various ingredients, and nitrogen is an element as it consists of only nitrogen atoms.

Answer:

1. Decomposition, Electrolysis

27.
a. Compound
b. Mixture
c. Mixture
d. Element