17. What is the symbol for the element that forms a.

protective oxide coating?

(A) K

(B) Ga

(C) Al

(D) Mg

A 6.7 kg object moves with a velocity of 8m/s what's its kinetic energy

Calculate the change in internal energy of the following system: a 100.0-g bar of gold is heated from 25 ∘C to 50 ∘C during which it absorbs 322 J of heat. Assume the volume of the gold bar remains constant.

Compute 4.659*104-2.14*104. Round the answer appropriately

Marco is draining his two aquariums. The tanks are the same size. One tank has 7 in. of water in it and is being drained at a rate of 1 in./min. The other tank has 5 in. of water in it and is being drained at a rate of 0.5 in./min.

How many atoms would be contained in 549 grams of zinc

Biofuel is any fuel that is produced from living or once living matter in a short period of time, days, weeks, or even months.

How are revolution and year related

Read the scientific question below. "Does sunlight make plants live?" What is a likely hypothesis for the question?

A chemist is using a solution of HNO3 that has a pH of 3.75. What is [H+] for the solution?

What is the oxidation number for CO2