Which of the following substances act as a catalyst in the body?

A) carbohydrates

B) nuclear Acids

C) Lipids

D) enzymes

Compare Dalton's model of the atom with the nuclear model of the atom.

Which of the following is a physical change

Scrubbers in smoke stacks remove large amounts of what major air pollutant? a. carbon dioxide b. sulfur oxides c. nitric acid d. sodium oxides e. mercury

A sample of gas 2.00 L with 5.00 moles present. What would happen to the volume if the number of moles is increased to 10.0.?

The units on the ruler are in nanometers (nm). look at the graduations on the ruler. what does each graduation represent?

When all of the bulbs in the parallel circuit were first lit, did they all illuminate equally?

1. Electronegativity is the ... a. amount of energy required to remove the most loosely bound electron from an atom. b. tendency of an atom to lose an electron to another atom. c.

What can the particles of a liquid do that the particles of a solid can't do?

What is the molarity of a solution prepared by dissolving 10.0g of kno3 in 250 ml of solution

What do nucleus act as