I think that it's cannot include supernatural explanations, or C.
If i got it wrong sorry
Answer:
There are five signs of a chemical change:
Colour Change.
Production of an odour.
Change of Temperature.
Evolution of a gas (formation of bubbles)
Precipitate (formation of a solid).
last one? don't take my word though
Explanation:
the suns heat is related to nuclear fusion
Answer:
Explanation:
When going from top to bottom in any group of the periodic table, the atomic radius always tends to increase
Answer:
single displacement reaction
Explanation:
coefficient if Ag is 2
after it is balanced
