Which of the following measurements is expressed to three significant figures?

a) 0.007 m

b) 7077 mg

c) 7.30 x 10^-7

d) 0.070 mm

By what factor does [h+] change for a ph change of 2.39 units.

What is the balanced product of Ba (CN) 2 + (NH4) 2SO4

Which part of the atom makes it unique?

Why do you need a balanced equation for stoichiometry?

An ice cube is dropped into a glass of milk at 20°C. Which statement explains the transfer of kinetic energy (KE) ? Because milk has higher KE than ice, KE is transferred from the milk to the molecules of ice.

Not all of the water falls as rain, snow, or sleet evaporates. What happens to the rest of the water?

58.5 million excess electrons are inside a closed surface. What is the net electric flux through the surface?.

Nitrogen monoxide and oxygen, both colorless gases, form a red-brown gas when mixed. Nitrogen monoxide and oxygen are called the

What quantity of heat is needed to raise the temperature of 5.0g of a substance from 20 c to 30 c if the specific heat?

Compare mechanical energy and thermal energy.