The element magnesium has 2 valence electrons. What is the most likely charge on a magnesium ion?

When a yellow light is shined on a white surface, why does the surface look yellow instead of white? A. Only yellow light is available to be absorbed from the white surface. B. White only reflects yellow. C. White reflects all colors. D.

If i got an C + 77% in my science class but i got an 3 F's 0% recently on a science fair project, What will my grade go down to?

Charlie Brown kicks a football at 24.5 m/s at 35.0. What is the maximum height of the ball?

At t=0, a constant force of 10 N is applied to a body of mass 5 kg starting at rest in outer space where there are no other forces. What is the power (in Watts) that the force delivers at t = 2 s?

In addition to ash, what is produced when wood burns a. oxygen and water vapor b. oxygen and carbon dioxide c. oxygen. carbon dioxide and water vapor d. carbon dioxide and water vapor

What scientific question does Isaac Asimov most clearly address with his story "Runaround"? A. Should robots be allowed to marry? B, should robots be treated as members of the family? C. Can robots be trained to follow a moral code? D.

The force generated by a single muscle fiber can be increased by increasing is called

Write an expression that results in a String consisting of the third through tenth characters of the String s.

Noah Formula is in an airplane which is flying at constant speed in a circular course of radius 6500 m, circling O'Hare's airplane prior to landing. Noah observed that the plane completes each round trip in 345 seconds (5 minutes & 45 seconds).

Two pieces of metal with exactly the same mass are placed on a surface in bright sunlight. The temperature of the 1st block increases by 3°C while the temperature of the 2nd increases by 8°C. If the specific heat of the 2nd block is 0.