The equation for the chemical reaction shown is not balanced. What number should replace the question mark to balance this equation?

2Ag2O →? Ag + O2

A.

2

B.

3

C.

1

D.

4

The light emitted by an incandescent element produces what?

Which of these describes something that happens as a pilot gets closer to the speed of sound?

What are 3 examples of ways that humans use this process to increase the value of a plant or animal for humans? (In other words, what are the three types of selective breeding? Briefly describe each one

An oil refinery plans to separate a mixture that contains propane and octane, shown below, by vaporizing the mixture and then collecting the substances as they cool and condense. 1. Will propane or octane condense at a lower temperature?

What are two ways radio waves and x rays are alike and different

A particular form of electromagnetic radiation has a frequency of 8.11 x 10^14 hz. What is the energy in joules of one quantum of this radiation?

To make tomato soup, you add one can of water to the condensed soup. why is this a dilution?

What is Chlorine in its excited state?

Describe a chemical property of vine

How many liters of 12.3 molar NaOH stock solution will be needed to make 12.4 liters of a 1.2 molar NaOH solution? Show the work used to solve this problem.