Summers are caused by a. a combination of longer days and more direct rays from the sun. b. less direct rays from the sun. c. longer days and longer nights. d. Earth in its orbit moving closer to the sun.

What is the definition of a physical property of matter?

Explain why noble gasses do not participate in chemical reactions. They have too many protons in the nucleus. They don't need all their electrons and neutrons. They only react with water under high pressure. They have a full outer shell of electrons.

How many grams are in 2.3 x10-4 moles of calcium phosphate ca3 (po3) 2

A manufacturing plan has been found guilty of polluting the nearby river. this is pollution

Have u been to a party where the lighting was colored? how did the color of object look different from how they normally look? how would u investigate why the color of objects appears different in colored lighting

How marly electrons are in an atom of elemental sodium?

Petroleum and coal can be mined from the continental shelf. t/f

A solid substance turns into a liquid. Which best describes this change?

List two things you know about nonrenewable energy

Does a mole of hydrogen have the same mass as a mole of oxygen? explain your answer.