When looking at a rock sequence, what does the wavy line represent?

a: tilting
b: a fault line
c: erosion
d: fossils

To calculate percent by mass, use the equation below: calculate the percent by mass of each element. %n = % %h = % %o = %

A5 mole sample of liquid acetone is converted to a gas at 75.0°c. if 628 j are required to raise the temperature of the liquid to the boiling point, 15.600 kj are required to evaporate the liquid, and 712 j are required to raise the final temperature to 75.0°c, what is the total energy required for the conversion?

Akno3 solution containing 51 g of kno3 per 100.0 g of water is cooled from 40 ∘c to 0 ∘c. what will happen during cooling?