Question

1.magnesium burns brightly when ignited
2.oil and water do not mix
3. mercury melts at -39 degrees c

Which ones are chemical changes and physical properties?

Answer 1

1 chemical
2 physical
3 physical

Answer 2

one more question please @pizza4dayz

Answer 3

k

Answer 4

for a medal

Answer 5

1.recycling used aluminum cars to make new aluminum cans
2. aluminum combing with oxygen to form aluminum oxide
chemical or phy. changes

Answer 6

@pizza4dayz

Answer 7

1 physical
2 chemical