How many moles of bromine are required to react with 2.8 moles of aluminum? 2.8 moles Al X 1 mole Al X 2 mole Br2 X 79.9 g Br2 = 336 g Br2
27 g Al 3 mole Al 1 mole Br2

According to coulomb's law, how would the electrical force between particles change if the product of their electrical charge increased?

The boiling point of propanoic acid is higher than that of 1-butanol because: propanoic acid has a higher molecular weight than 1-butanol. propanoic acid is more soluble in water than 1-butanol. propanoic acid is a better hydrogen bond donor than 1-butanol. propanoic acid forms hydrogen bonded dimers and 1-butanol does not. 1-butanol forms hydrogen bonded dimers and propanoic acid does not.

Sodium sulfate dissolves as follows: na2so4(s) → 2na+(aq) + so42- (aq). how many moles of na2so4 are required to make 1.0 l of solution in which the na concentration is 0.10 m?