What happens in a chemical reaction? А
Substances change in appearance but not in chemical composition.
B
Substances change from solid to liquid or gas.
с
Substances interact to form one or more new substances.
D
New atoms are created or destroyed.

Read the sentences below in 1962, i tried to enroll as the first black student at the university of mississippi. the governor of mississippi blocked my entrance which best describes the verbs used in the sentences? o they are past tense verbs, which are often used in narrative essays o they are past tense verbs, which are not often used in narrative essays. o they are future tense verbs, which are often used in narrative essays o they are future tense verbs, which are not often used in narrative essays.

Theyre semiconductors.