How much energy is required to melt 2 kg of gold? Use the table below and this equation: Q = mLfusion A) 3440 kj
B) 1720 kj
C) 10.4 kj
D) 125.6 kj

(Table is in the picture)

Bar graph

Burned piece of steel wool does not gain mass. so only d could be true.

3-isopentane; 3-methylbutane, and 1,2-methylpropane do not meet iupac rules, so they are wrong names.the only valid name onthe list is 2-methylbutane, which is the same isopentane.this is its formula:                   ch2                    |ch3 - ch - ch2 - ch3answer: 2-methylbutane

For apex it is hydroxyl