Skip to content
MathsGenie logo
Open app

Course home

  1. GCSE
  3. Chemistry Edexcel
  5. Question bank

Calculations involving masses

EasyMediumHard
12345678910111213141516171819202122232425262728293031323334353637383940414243444546
Question 35

2.08 g of chromium combines with 0.96 g of oxygen to form an oxide of chromium.

Determine the formula of this oxide of chromium and use it to complete the balanced equation.

Relative atomic masses (ArA_rAr​): Cr=52.0\text{Cr} = 52.0Cr=52.0, O=16.0\text{O} = 16.0O=16.0

You must show your working.

Balanced equation for the reaction:

..... Cr+..... O2→..... \text{..... Cr} + \text{..... O}_2 \rightarrow \text{.....} ..... Cr+..... O2​→.....
[4]

Calculations involving masses Questions

  1. GCSE
  2. /Chemistry
  3. /Calculations involving masses