Calculate the mass of butane needed to produce 72.9 grams of carbon dioxide

Explanation:

The balanced equation is the following:

The molecular mass of the carbon dioxide is:

Atomic mass of C = 12

Atomic mass of O = 16

Molecular mass of = 12 + (16*2) = 44

The molecular mass of the butano is:

Atomic mass of C = 12

Atomic mass of H = 1

Molecular mass of = (4*12) + (10*1) = 58

Find the grams of carbon dioxide using the stoichiometry of the reaction:

- 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