Why phosphorus forms 3 bonds in molecule such as PH3 and PCl3-

What is the scientific name for acetone

A mixture of He, He, Ne, Ne, and Ar Ar has a pressure of 18.8 atm 18.8 atm at 28.0 °C. If the partial pressure of He He is 2.94 atm 2.94 atm and the partial pressure of Ar Ar is 4.27 atm, 4.27 atm, what is the partial pressure of Ne? Ne?

Scientists think about Earth's layers in terms of which of the following ways?

One of the greatest safety concerns associated with nuclear power plants is the A. Emission of greenhouse gasses B. Pollution that contributes to acid rain C. Disposal of radioactive by-products D. Change in pH of nearby bodies of water

How heat moves from one end of a solid to the other

The surface of the earth is divided into more than 50 large plates

What is the net ionic equation for AgNO3 (aq) + K2SO3 (aq) ?

Oil and water a combined to make salad dressing. Physical Change? Chemical Change? Both?

How is water different from most liquids? It expands when it freezes. It contains chemical bonds. It has ionic and covalent bonds. It boils when it is heated.

In the thermal decomposition of copper carbonate, the black solid left behind weights less than the original copper carbonate. Why?