Ca2 + gains 2e - now it has

While visiting the Grand Canyon, you observe the exposed layers of rock in the valley. What natural process most likely caused the valley to form? Deposition Chemical weathering Oxidation Erosion

Which of the following statements about X rays is incorrect? a. X rays darken photographic plates. b. X rays can penetrate soft body tissue. c. The kinetic energy of high speed electrons is converted to X rays when they collide with matter. d.

A container holds 7.2 L of nitrogen at 25 °C. What will be its volume if the temperature increases to 70 °C? Hint: Use Charles' Law - (V/T1) = (V2/T2)

How many karats equal one ounce gold?

Why cant we just put in subscripts?

My sister needs this answered! Donald is creating an experiment to determine if fertilizer affects plant color. He makes this statement: "If each plant receives a different amount of fertilizer, then the plant's color intensity will change.

What would happen to life if earth were in a different location within the solar system

Substance that undergoes a change in a chemical reaction is a. a product c. a reactant. b. a chemical. d. an enzyme.

List the number of protons, neutrons, and electrons in Iodine-127. (atomic number is 53)

At approximately what temperature will 40g of argon gas at 2 atm occupy a volume of 22.4L a) 600K b) 550K c) 270K d) 140K