Answer:
All molecules of a compound have one type of atom.FLASE, compounds aren't one type, there compounds
Each molecule of a compound has different properties false
All molecules of a compound have the same properties true
Each atom of a molecule is the same FALSE
Explanation:
hard to say for sure but i think its 3
Answer:
Pure Chemistry -- is NOT considered a branch of Chemistry.
Explanation:
Second question is number 4.
41.6g/cm3 would be the density of the bread
Avagadro's law gives the relationship between volume of gas and amount of moles of gas. It states that at constant temperature and pressure, volume of gas (V) is directly proportional to number of moles of gas (n).
V/n = k
where k - constant

V1 = 42.0 L
n1 = 1.90 mol
n2 = 1.90 mol - 0.600 = 1.30 mol
substituting the values in the equation

V = 28.7 L
Volume of the gas is 28.7 L