What mass of nitrogen is required to react with 16 grams of oxygen?

14g

Explanation:

N2 + 2O2 => 2 NO2

Molar mass of O2 = 32g/mol

No of mol= 16/32 = 0.5 mol

2 moles of Oxygen react with 1 mol of N2

1 mol of oxygen react with X mol of N2

X = 0.5mol

Molar mass of N2 = 28g/mol

No of mol = mass/molar mass

Mass = 0.5 × 28 = 14g.

- calcium has greater affinity to bond with electron receptors than hydrogen does and hence, it has the ability to replace hydrogen in most of its compounds.

- lithium has 2 valence electrons in the product because it can make only 1 bond with hydrogen. beryllium has 4 valence electrons in the product because it can only make 2 bonds. it has fewer electrons than neon and can react with electron donors. each hydrogen has 2 valence electrons, the same as helium.

- the covalent bond formed between carbon and hydrogen is polar because carbon is more electronegative than hydrogen and it attracts the bonded electron pair closer to itself, thus giving hydrogen a partial positive charge.

- a hydrogen bond is a relatively weak bond that hydrogen atoms make with the electronegative atoms nitrogen, oxygen or fluorine.

so the best choice is a.) 2 calcium (ca) atoms

mark him as !