Could you help me with these two Chemistry questions?

Question

1. Pure water is a(n) _____.

A) element

B) compound

C) mixture

D) solution

2. Fe2O3 is the major component in rust. How many atoms are in one molecule of rust?

A) 1

B) 2

C) 3

D) 5

Answer 1

1.) Compound -- Compounds are comprised of multiple elements.  Elements are on the periodic table.  Things like hydrogen, oxygen, nitrogen, gold, sodium, and magnesium.  Put a couple together, like sodium (Na) and chlorine (Cl) and, after electron swapage, you get a compound, sodium chloride (NaCl)--or in our case hydrogen (H) and Oxygen and get water, H2O.  

2.)  5 -- There are 5 atoms in the compound Fe2O3 (Rust): 2 Fe (Iron) atoms and 3 O (Oxygen) atoms.  Just like there are two atoms in the above compound, NaCl: 1 Na (Sodium) atom and 1 Cl (Chlorine) atom.

Answer 2

1) B. It's a compound because it is H20,

2). d because there are 2 iron atoms and 3 oxygen atoms

Good luck in Chem!!