Natural gas is mostly methane, a substance that boils at a temperature of 109 K . What is its boiling point in °C
and °F?

What is the maximum amount of al2(so4)3 which could be formed from 15.84 g of al and 12.89 g of cuso4?

Gymnast always perform on padded mats. how does the mats protect the gymnast

Three cards with holes are arranged in a straight line. a light is shined through the first card’s hole and travels through all three cards. what does this tell you about light rays? a) that light is reflected b) that light is refractive c) that light travels in a straight line d) that light does not travel in a straight line