Which is a strong base? HCl NaOH NH3 H3CO3

What happens in an oxidation half-reaction?

Newton's second law of motion is F=ma A net force of 60 N north acts on an object with a of 30 kg. Use Newton's second law of motion to calculate the amount of acceleration the object will experience.

which of these equations are balance a) 3 H2SO + 2AI = AI2 (SO4) 3 3H2 b) 2KCI + Pb (NO3) 2 = 2KNO3 + PbCI2

The competition between the U. S. and the Soviet Union to get satellites and humans into space was known as the: a.) space competition c.) space fight b.) space race d.) none of the above

What produces all the known elements in the universe other than hydrogen?

Commercial fertilizers, which are made by humans, are used to enrich soil for healthier crops. However, erosion may carry the fertilizer chemicals to the oceans. The presence of these chemicals may cause certain kinds of algae to reproduce rapidly.

A cube of iron has a temperature of 35°C. It is placed on top of a hot surface with a temperature of 175°C. What will happen to the iron? A) Its temperature will decrease. B) Heat will flow from the hot surface into the iron.

Density differences cause the

Why can't you balance a chemical equation by changing the subscript?

Which level of organization is best represented by the corn plant? tissue, the highest level of organization organ, the lowest level of organization organism, the level of organization directly above organ system organ system, the level of