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What happens to substances temperature during a change of state?
Temperature remains constant
What does change of state operation?
Change of state is a property that involves the substances of chemical and physical changes
What types of change is a change of state?
Changing between one of the states of matter. More commonly a solid to a liquid (ice melting) or a liquid to a gas (water evaporating).
What kind of changes in substances are always physical changes?
The kinds of changes in substances that are always physical changes are changes in the state. This is the change from solid, to liquid and then to gas and the reverse.
Why most substances expand when they change from a solid to a liquid?
During the melting the structure of the material is destroyed and the liquid is a low oredered state of matter.
What does undergo physical or chemical changes mean?
if during a change the chemical composition of the reactants change or any new products are formed then the reactant is said to undergo chemical change.if the state, color, phase or any other physical properties of the reactant change without any change the chemical composition of the reactants or formation of any new substances then it is said to undergo physical change
Most substances change their physical state and?
liquify or boil
What is always a characteristic of a chemical change but not always a characteristic of a physical change?
When a chemical change takes place, the chemical structure of particles involved changes (i.e. one or more new substances are formed). In a physical change, the physical state of the particles involved changes (e.g. a solid melts and becomes a liquid). The chemical structure of the particles does not change, and no new substance is formed.
The change in which no new kinds of matter are formed but the size shape or state of the matter may change?
The change in which no new kinds of matter are formed but the size, shape or state of the matter may change is known as a physical change.
What state was formed as a union state during the war?
West Virginia
When substances are given energy they may change state This is a physical change If they do not receive enough energy to change state they will still experience a physical change What is this call?
heating
What something in an experiment that can change?
The chemical composition and physical state of substances can change during an experiment.For example two reactants in solid or liquid form can react in an experiment to give a product in a gaseous form.
