Question

Which of these is a mixture? A) milk B) salt C) sulfuric acid D) carbon dioxide

Answer 1

A, milk. the rest are compounds

Step-by-step explanation:

Answer 2

The correct answer is A . MIlk is a mixture because pure substances were combined together without formation of bonds, hence it would be easy to separate the substances. On the other hand, salt, sulfuric acid and carbon-dioxide are made from bonding between elements in the periodic table to form compounds. Salt is formed through bonding between Na and Cl atoms, while sulfuric acid
`H_2SO_4` is made from bonding
`H^+` and
`SO_4^-^2` ions. Carbon-dioxide
`CO_2` is made from bonding between C and O elements. Compounds bond at a specific ratio while mixtures have no specific ratio of mixing.