Brainliesttt !me : ))

emma used an equal arm balance to weigh a 1.134 g sample of calcium carbonate. which of these measurements made by emma is the most accurate?

1.1 g
1.2 g
1.3 g
1.4 g

Tin has ten stable isotopes. the heaviest, 124sn, makes up 5.80% of naturally occuring tin atoms. how many atoms of 124sn are present in 82.0 g of naturally occurring tin? what is the total mass of the 124sn atoms in this sample?

Calculate - analysis of compound composed of iron and oxygen yields 174.86 of fe and 75.14g of o. what is the empirical formula for this compound?

What is the percent by mass of oxygen in fe2o3