Top answers

What is the difference between moles and molar?

Lets start with what a concentration is. Concentration is the amount of something in a volume. For example, 1 gram of sugar in one litre of water is 1 gram per litre. This can be written as 1g/L (the divisio...
BR
Answered by Ben R. • Chemistry tutor
61079 Views

Why do metals conduct electricity?

To answer this question we need to think about the bonding that occurs within metals. Metallic elements form strong lattices due to the metallic bonding. This consists of a lattice of positive metal atoms. T...
AM
Answered by Alex M. • Chemistry tutor
18973 Views

Balance the chemical equation: AgI + Na2S → Ag2S + NaI

2 AgI + 1 Na 2 S → 1 Ag 2 S + 2 NaI Both sides of the equation need to have the same number of each element. We need to make sure that the amount of one element we have on one side of the equation is the sam...
MS
Answered by Mohamed S. • Chemistry tutor
27043 Views

Complete the equation: Zn(s) + H2SO4 (aq) –> ...... + ......

Zn(s) + H 2 SO 4 (aq) –> ZnSO 4 (aq) + H 2 (g) Zinc reacts with sulfuric acid to form zinc sulphate and hydrogen gas
HK
Answered by Henry K. • Chemistry tutor
7143 Views

Balance the equation: C4H8 + O2 goes to CO2 + H2O

Balance the carbon atoms first by adding a 4 in front of the CO2, Then balance the hydrogen atoms by adding a 4 in front of the H2O, Count up the number of oxgens on the right hand side: (4 2)+(4 1)=12 There...
JH
Answered by Jack H. • Chemistry tutor
15185 Views