quantitive chemistry

Question 1

what is the law of the conservation of mass?

Answer 1

states that no atoms are made or created, mass of reactants - mass of products

Question 2

define relative atomic mass and relative formula mass

Answer 2

average amount of atoms relative to carbon 12 (equals one mr)

Question 3

relative mass formula of
C6H1206

Answer 3

C6H12O6 = 180

Question 4

What is avagrado’s constant?

Answer 4

the number of atoms in a given constant
6.02 x 10to the 23

Question 5

formula for mass, mr and moles?

Answer 5

mr x moles = mass

Question 6

what is the mass of 20 moles of calcium carbonate?

Answer 6

Mr = 100
moles = 20
mass = 2000g