Chemistry, 27.09.2019 01:00, mtmtcow1122

19. balance the following chemical equation: fe + o2 → fe2o3 what is the coefficient on fe, o2 and fe2o3? *

a. 1, 2, 3

b. 4, 3, 2

c. 1, 3, 1

d. 2, 1, 1

20. the law of conservation of mass lets us know that in every chemical equation you have to have the same number of on both sides of the equation. *

a. moles

b. coefficients

c. atoms of each element

d. molecules

Answers: 1

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19. balance the following chemical equation: fe + o2 → fe2o3 what is the coefficient on fe, o2 and...