Fast
i dont get the rest of this
mass of 5 pennies: 12.5g
mass of 1 penny: 2.5g
mass of 5 nickels: 25g
mass of 1 nickel: 5g
mass of 5 quarters: 28.4g
mass of 1 quarter: 5.68g
volume of 20 pennies: 7.2ml
volume of 1 penny: .36ml
volume of 20 nickels: 14.4ml
volume 20 quarters: 16.2ml
volume of 1 quarter: .81ml
density of a penny:
density of a nickel:
density of a quarter:

yes yes yes yes yes yes yes yes yes yes yes yes yes yes yes

explanation:

- lead + phosphoric acid = hydrogen + lead(ii) phosphate

"hydrogen bonding is the attraction of h atoms in the water molecule (slight + charge) to o atoms in a neighboring water molecule (slight - charge); it is a weak interatomic force. but it is still strong enough to the water molecules "stick" together."