Asubstance is known to contain 2.00 g of carbon for every 5.33 g of oxygen. how many grams of carbon will be present in 55.0 g of this substance?

Answer : The mass of carbon present in 55.0 grams of the substance will be, 15.006 grams.

Explanation :

First we have to calculate the total mass substance.

Total mass of substance = Mass of carbon + Mass of oxygen

Total mass of substance = 2.00 g + 5.33 g = 7.33 g

Now we have to calculate the mass of carbon present in 55.0 grams of substance.

As, 7.33 grams of substance contain 2.00 grams of carbon.

So, 55.0 grams of substance contain grams of carbon.

Therefore, the mass of carbon present in 55.0 grams of the substance will be, 15.006 grams.

- 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