Chemistry Question, dotn know how to work out A and B.

a) 0.133 mol

b) 5.87 g

Explanation:

a)

To find the number of moles, we use the formula , where m is the mass of the given substance in g, and Mᵣ is the relative molecular mass of the substance. Hence,

n of C = = mol = 0.133 mol (3sf)

b)

Molar ratio of C to CO₂ is 1:1. As such, for every 0.133 mol of C used, 0.133 mol of CO₂ is produced. Using the formula ,

m of CO₂ = × (12 + 2(16))

= × 44

= g

= 5.87 g (3sf)

hope this

explanation:

covalent bonds

consist of pairs of electrons shared by two atoms, and bind the atoms to fixed orientation and requre high energies to break them

ionic bonds

when two atoms differ considerably in their electronegativity, then one of the atoms will lose its electron to the other atom. this results in a positively charged ion(cation) and a negatively charged ion (anion)