It changes form

It becomes invisible

It is destroyed

It transforms into energy

Change in physical properties without altering chemical structure

None of the above

Change in chemical structure

Irreversible change

Change in temperature

All of the above

Production of gas

Change in color

Due to energy loss

Because matter is neither created nor destroyed

All reactants are used up

Because new substances are lighter

A product formed

A substance that remains unchanged

A catalyst

A substance that undergoes change

Mass can be created and destroyed

Mass is only conserved in physical changes

Mass cannot be created or destroyed

Mass is only conserved in chemical reactions

They would weigh less than before

They would weigh more than before

Their weight would be the same as initially

They would be weightless