Answer:Noble gases:
are highly reactive.
react only with other gases.
do not appear in the periodic table.
are not very reactive with other elements.
Explanation:Noble gases:
are highly reactive.
react only with other gases.
do not appear in the periodic table.
are not very reactive with other elements.
There are 4 significant figures! Start counting after the first non-zero digit :)
Hope this helps.
Answer:
2
Explanation:
Pb(NO3)2 + 2NaI 2NaNO3 + PbI2
I want to say 59 atomic mass units<span> is beta decay, but I'm just guessing from previous Chem. class.</span>