Which of the following substances is an element? A. carbon (C) B. water (H2O) C. methane (CH4) D. brass (Cu + Zn)

Predict the products produced in the following reaction NaCl + ZnS04

How many oxygen atoms are in 10 formula units of AI2 (SO4) 3

Consider the chemical equilibrium of the reaction. AgCl (s) Ag + (aq) + Cl - (aq) What will happen to the chemical equilibrium if AgNO3 is added? There is no shift in the chemical equilibrium of the system.

Why is water densest 40 degree Celsius

How does temperature affect the solubility of most solids

What is the effect of a catalyst on a reaction? It increases the entropy. It decreases the entropy. It changes the equilibrium. It makes the products more stable.

Where should you place the title when constructing a graph?

Which of the following applies to He gas in the tank when additional oxygen is added at constant temperature? A rigid metal tank contains oxygen gas. A. The volume of the gas increases B. The pressure of the gas decreases C.

Which statement does NOT coincide with kinetic-molecular theory? A.) Gas particles assumed to have an insignificant volume B.) Gases are made up of hard spherical particles C.) All gases particles move in a constant random motion D.

If an atom has 6 electrons outside of its nucleus, which combination of protons and neutrons would result in a neutral atom?