How many atoms are present in 3H^2O

Cells destroy body cells infected by a virus or bacteria. killer t t memory t none of the above

Suppose you use three different scale to weigh a bag of organges. one scale says the nag weighs 2.1 lb, and third says it weighs 2.1 lb. the actual weight of the bag of organges is 2.153 lb. which of the following best decribes these results?

Which rate indicates the number of children that would be born per women if she were to live to the end of her child-bearing years