A magnesium (Mg) atom has 2 valence electrons. Which of the following

would be the most likely way for a magnesium atom to become stable?

O

A. Lose 2 electrons

O

B. Lose 1 electron

O

C. Gain 6 electrons

O

D. Gain 1 electron

When an object falls through the air and encounters air resistance its overall speed will be

A beach ball is rolling in a straight line toward you at a speed of. 5 meters per second. It's momentum is. 25 kgxm/sec what is the mass of the ball

What is the gravitational potential energy of a 63.5kg skateboarder at the top of a 0.61m high ramp

Why would your weight be different on the moon than on earth?

You are an employee of the city of Chicago. A city official declares that all cables holding traffic lights in the city should be exactly horizontal and asks you to direct the project. What should be your reply? A.

Ethylene (C2H4) reacts with oxygen gas to produce carbon dioxide and water. 45.0 grams of ethylene reacts, how many grams of carbon dioxide gas will be produced?

What causes ice to melt and water to boil

A block of mass 3.5 kg slides down a frictionless inclined plane of length 6.4 m that makes an angle of 30 degrees with the horizontal. if the block is released from rest at the top of the incline, what is its speed at the bottom

What is the wavelength of an earthquake wave if it has a speed of 5 km/s and a frequency of 10 Hz?

The gamma ray released by each decay carries 140kev of energy. find the total energy e released by decays in the 2 hours.