Use the density of aluminum given in the lab to find the mass of a piece of aluminum foil that has a volume of 0.422 cm3. Show your work by typing it. Remember to consider significant figures in your answer.

What happens to energy in an open system?

The is a particle with one unit of positive charge a. proton b. positron c. electron d. nucleus awnser quick it is a important science test!

Diffraction is when light is bent around obstructions. which of the these observation about clouds would indicate diffraction? a) after rain storms, you can sometimes see rainbows. b) clouds are white or gray and cannot be seen through. c) on a cloudy day, the temperature tends to be cooler than a sunny day. d) the edges of dark clouds appear lighter. this