Answer:
A) a chain reaction that is caused by nuclear fission
I can't see the pictures clearly but maybe this will help
Answer:
a metal spoon left in boiling water
Explanation:
when carbon dioxide gas is collected down ward of water wet gas is collected by the downward displacement of water . This is used for gases that are not very soluble in water . ... In water , carbon dioxide produces a weakly acidic solution , carbonic acid .
