Vhen dissolved in water, an acid or a base breaks down into a proton and an electron.
two negative ions.
a positive and a negative ion.
a positive ion and a proton.

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.

Compound with sulfer  is bright red