a pure substance - glass cleaner.
a mechanical mixture - soil, baking powder
or a solution - Perfume
Looks like 3*.5 mol of N, or 1.5*.5 N2
<span>convert that to grams.</span>
Answer:
the answer is 0.45 kilograms.
Answer:You can get the valence electrons in an atom's electronic arrangement by consulting the periodic table:
Explanation:
The Group 1 atoms have 1 valence electron.
The Group 2 atoms have 2 valence electrons.
The Group 3 atoms have 3 valence electrons.
The Group 4 atoms have 4 valence electrons.