MEDIUM
Upper Secondary: IGCSE
IMPORTANT
Earn 100

Why does Silica have the formula SiO2?

Important Questions on Reacting Masses, and Chemical Equations

EASY
Upper Secondary: IGCSE
IMPORTANT

Decide whether this formula is correct. If it is not correct, write it correctly.

HBr2

EASY
Upper Secondary: IGCSE
IMPORTANT

Decide whether this formula is correct. If it is not correct, write it correctly.

ClNa

EASY
Upper Secondary: IGCSE
IMPORTANT

Decide whether this formula is correct. If it is not correct, write it correctly.

Cl3Ca

EASY
Upper Secondary: IGCSE
IMPORTANT

Decide whether this formula is correct. If it is not correct, write it correctly.

Ba2O

EASY
Upper Secondary: IGCSE
IMPORTANT
Write the correct formula for Barium iodide.
MEDIUM
Upper Secondary: IGCSE
IMPORTANT
See if you give a name and formula for a compound that forms when Phosphorous reacts with Chlorine. 
MEDIUM
Upper Secondary: IGCSE
IMPORTANT
What do + and mean, in an equation?
EASY
Upper Secondary: IGCSE
IMPORTANT

Balance the following equation:

Nas+Cl2gNaCls