Answer:
Mixture
Explanation:
When a prospector scoops up part of the stream bed, the pan contains stream sediments.
Answer:
D
Explanation:
exactly one reactant is a solid, and exactly one product is a gas.
Answer:
John Dalton's Atomic Model Below ⬇
Explanation:
For sodium, it has 1 valence electron
For oxygen, it has 6 valence electrons
For iron, it has 2 valence electrons