Skip to content
MathsGenie logo
Open app

Course home

  1. A Level
  2. Chemistry OCR A
  3. Question bank

Atoms and reactions

EasyMediumHard
12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667
Question 13

0.62 g of element X\text{X}X is reacted with 0.80 g of O2\text{O}_2O2​ to form an oxide with the formula X2O5\text{X}_2\text{O}_5X2​O5​.

What is the identity of element X\text{X}X?

Nitrogen

Phosphorus

Vanadium

Arsenic

Atoms and reactions Questions

  1. A Level
  2. /Chemistry
  3. /Atoms and reactions