Type the correct answer in each box. The mass of an object is 45 kilograms. Its weight on Earth is newtons, and its weight on the Moon is newtons.
Gravitational force is 9.8 m/s2 on Earth and 1.6 m/s2 on the Moon.

Which material produces static charge when rubbed ?

Compared with the freezing-point depression of a 0.01 m c6h12o6 solution, the freezing-point depression of a 0.01 m nacl solution is

Given the following at 25c calculate delta hf for hcn (g) at 25c. 2nh3 (g) +3o2 (g) + 2ch4 (g) > 2hcn (g) + 6h2o (g) delta h rxn= -870.8 kj. delta hf=-80.3 kj/mol for nh3 (g), -74.6 kj/mol for ch4, and -241.8 kj/mol for h2o (g)