There are three types of plate boundaries. Which choice is NOT a type of plate boundary?

A) convergent

B) divergent

C) thrust

D) transform

An odorless, colorless, poisonous gas is produced by the incomplete burning of fossil fuels. This gas also interferes with the blood's ability to carry oxygen. What is the name of this air pollutant? A. asbestos B. carbon monoxide C. radon D.

Different elements must have different numbers of what a. all particles b. protons c. electrons d. neutrons

A 22.4 liter sample of gas at stp weighs 12.0 grams. What is the molecular weight of the gas

One office building contains only incandescent lights. The building next door contains only fluorescent lights. Predict which building has higher energy bills. Explain your answer.

What would be the pH of 0.00050 M HCl

What is the empirical formula for a compound that is 29.44/% calcium, 23.55% sulfur, and 47.01% oxygen? This compound is a common ingredient in plaster

Through which medium do sound waves travel most slowly?

How are super-absorbent polymers useful in fuel filters? a. They add water to the fuel line to dilute gas. b. They stop excess oil from reaching the engine. c. They repel water to protect the filter from rusting. d.

4. suppose you are setting up a reaction that requires an iodide salt and are planning to use sodium iodide. however, at the last minute you find that you are out of sodium iodide, so you must use potassium iodide instead.

Which of the following is a physical change of matter? A) Roasting marshmallows B) mixing kool-aid and water C) mixing alka seltzer and water D) baking a cake