Which is not a compound? a)gold b)water c)sugar d)silicon dioxide

The continuous release of nuclear energy caused when one fission reaction triggered more nuclear reactions is a

Which position represents spring in the southern hemisphere? a) b) c) d)

Use this information to determine the number of calends electrons in the atoms. which of the following correctly compares the stability of the two atoms? a) both are unreactive b) both are highly reactive c) a is unreactive and d is reactive d) a is reactive and d is unreactive