When a cup of hot chocolate cools from 90 C to 80 C, which

of the following is happening to the molecules of the liquid?

The weight of an object is the product of its mass, m, and the acceleration of gravity, g (where g=9.8 m/s2). If an object's mass is m=10. kg, what is its weight?

Which of the following elements has the lowest electronegativity? a. lithium b. Carbon C. bromine d. fluorine

When heat is added to or removed from a substance, it may change its state. What state will most likely result if heat is added to a liquid?

What is the oxidation number of chlorine

Which example best describes the conversion of chemical energy to mechanical energy? A. fuel being combusted to power a rocket B. electricity boiling water C. sunlight warming the ground

What are two parts of the peripheral nervous system

Why is it problematic for some of a prescription cream to get on the outside of the jar?

How many milliliters of a 2.5 M LiOH solution are needed to completely neutralize 25 mL of a 1.0 M H2SO4 solution?

What is a neutralisation reaction?

Pure water at 25°C ionizes as what?