Which of the following refers to the concentration of a substance?

Question 3 options:

The minimum volume of solvent dissolved per liter of solution at a given pressure.

The grams of solute dissolved per 100 g of solvent.

The size of the particles that make up a substance.

The maximum amount of a solute that can be dissolved in a solvent at a given temperature.

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.

The answer is 1.82 j/g°c                  

Both models are effective because they show the valence electrons, and these valence electrons indicate the reactivity of an element.