How many significant figures are there in 0.004500?
2
3
4
5
(3) 4 (Trailing zeros after the decimal are significant)
Which of the following numbers has the highest number of significant figures?
0.00450
450.0
0.045
45.000
(4) 45.000 (It has 5 significant figures)
The Law of Conservation of Mass states that:
Mass can be created but not destroyed
The total mass of reactants and products remains constant
Energy can be converted into mass
None of the above
(2) The total mass of reactants and products remains constant
