Topic 2 - Heating Materials Flashcards
1
Q
What happens when you heat a magnesium ribbon. Is it reversible or irreversible?
A
It burns with a bright white light and forms a white ash.
It is irreversible.
2
Q
What happens when you heat ice. Is it reversible or irreversible?
A
It changes to a liquid (melts).
It is reversible.
3
Q
What happens when you heat candle wax. Is it reversible or irreversible?
A
It melts.
It is reversible.
4
Q
What happens when you heat copper carbonate. Is it reversible or irreversible?
A
It changes from green to black.
It is irreversible.
5
Q
What happens when you heat a wooden splint. Is it reversible or irreversible?
A
It chars, forms a black ash.
It is irreversible.
6
Q
What happens when you heat bread. Is it reversible or irreversible?
A
It chars/ toasts.
It is irreversible.
