How much energy does it take to melt 2 kg of ice? (Refer to table of
constants for water.)
1 mol
O A. 2 kg x 1000 g/kg x
x 4.186 kJ/mol = 465 kJ
18.02 g
O B. 2 kg x 1000 g/kg *
1 mol
18.02 g
*(-285.83 kJ)/mol = -31,724 kJ
O C. 2 kg > 1000 g/kg *
1 mol
x 6.03 kJ/mol = 669 kJ
18.02 g
O D. 2 kg x 1000 g/kg x
1 mol
18.02 g
x 40.65 kJ/mol = 4512 kJ
SUBMIT

The p sub shell can hold up to 8 electrons in an atom. true or false?

Me i dont know what to do! the table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 10 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of the two atoms? both are unreactive. both are highly reactive. a is unreactive and d is reactive. a is reactive and d is unreactive.

The number of neutrons is equal to the atomic number minus the atomic mass. a. true b. false