Which of the following indicates that a chemical change has happened during cooking? The food darkens.

Bubbles form in boiling water.

Energy is transferred from the stove to a pan.

Butter melts.

​

Which statement is best described as a atom

Which formula can be used to calculate the molar mass of hydrogen peroxide

Insoluble sulfide compounds are generally black in color. which of the following combinations could yield a black precipitate? check all that apply. na2s(aq)+kcl(aq) li2s(aq)+pb(no3)2(aq) pb(clo3)2(aq)+nano3(aq) agno3(aq)+kcl(aq) k2s(aq)+sn(no3)4(aq)