Use VESPR theory to predict the molecular shape of the following molecules.

4. carbon dioxide (CO2)

5. methane (CH4)

6. the nitrate ion [NO3]-

How many pizzas will you need if 32 people eat 3 slices per person and there are 8 slices per pizza

If a 1.85 g mass of zinc produces 475 mL of gas and your balloon weighs 0.587 g and the room temperature is 19.0°C.

How to describe the rotation and revolution of the moon?

Why magnesium and potassium chloride will not react together

How many grams of NH3 are needed to provide the same number of molecules as in 0.55 grams of SF6?

What is an example of making a qualified observation

With respect to composition, how is the compound made from hydrogen and oxygen different from mixtures of these two elements?

How should scientist respond when new evidence that challenges current is presented?

Consider the following reaction, equilibrium concentrations, and equilibrium constant at a particular temperature. Determine the equilibrium pressure of H2. D2 (g) + H2 (g) ⇌ 2 HD (g) Kp = 1.80 P (D2) eq = 1.1 * 10-3 atm P (HD) eq = 2.7 * 10-3 atm

Find δe for the change in state of 1.0 molh2o (l) at 79 ∘c to h2o (g) at 116 ∘c. the heat capacity of h2o (l) = 75.3 j/molk, heat capacity of h2o (g) = 25.0 j/molk, and the heat of vaporization of h2o is 40.7*103j/mol at 100 ∘c.