The law of conservation of mass states that mass cannot be created or destroyed. To what type of change does this law apply?

the answer is ampere

the ampere is used to measure electricity. an ampere is a unit of electric current equal. a unit of measure for the flow of current in a circuit. one ampere is the amount of current flow provided when one volt of electrical pressure is applied against one ohm of resistance.

answer(20) psi;

according to jean piaget, in what stage of cognitive development are children able to understand conservation task?

b. preoperational

just took it