What is the wavelength of light with 2.89 x 10-19 J of energy? (The speed of
light in a vacuum is 3.00 x 108 m/s, and Planck's constant is 6.626 x 10-34
J•s.)

Arock can be broken down into different kinds of substances by physical processes. no chemical reactions are needed to separate different parts of a rock into pure substances. this is because a rock is a(n)

What approach is required to balance the objectives of sustainable development? balancing the objectives of sustainable development requires a(n) .

In a reaction equation, where are the products located? a.) above the arrow b.) to the right of the arrow c.) to the left of the arrow d.) below the arrow