How many significant figures are contained in each of the following measurements?
(a) 38.7 g
(b) 2 x 1018 m
(c) 3,486,002 kg
(d) 9.74150 x 10-4 j
(e) 0.0613 cm3
(f) 17.0 kg
(g) 0.01400 g/ml

How is the composition of a meteorite relevant to finding out the composition of earth's core?

Plz choose one of the compounds from the table and explain how you know the numbers of atoms in your formula. is it possible for two different compounds to be made from the exact same two elements? why or why not? with a limited number of elements (less than 120 are known), does this mean we also have a small number of compounds or do we have a large number of compounds in this world?

2points what is the job of a scientist? a. to answer ethical questions. b. to write laws based on his or her knowledge. c. to ask and answer scientific questions. d. to ignore facts that do not support his or her theory.