A100-gram sample of sodium chloride (nacl) consists of 60.66 g of chlorine and 39.34 g of sodium. what mass of sodium would make up a 150-gram sample of sodium chloride?
89.34 g
39.34 g
59.01 g
64.24 g

The answer is 59.01 g

If a 100-gram sample of NaCl consists of 39.34 g of sodium, a 150-gram sample of NaCl will consist x g of sodium:

100 g : 39.34 g = 150 g : x
x = 39.34 g * 150 g : 100 g
x = 59.01 g

Only one reactant yields 2 or more products. meaning you will only have 1 product and it will break down into 2 or more products. eg. h2o -> h2 + o2

There is no reason to think the results are biased or not conducted properly but you should not assume the results are correct just because they were done in a laboratory so the answer would be c. it is likely to be reliable because the results support the conclusion presented.