Which of the following elements possesses an expanded octet?

O

Si

Xe

C

Which has the least potential energy? Solids liquids or gases?

In which example is matter changing state? A. heating a pan of water until the water is all gone B. putting a soft drink can in the refrigerator to cool it C. heating soup on the stove until it is hot to your tongue D.

Which of the following is NOT an example of matter? a. clouds b. gasoline С. ice d. light

What kind of pizza thooe? -. -

For the equilibrium reaction 2so2 (g) + o2 (g) 2so3 (g), δhºrxn = - 198 kj/mol. which one of these factors would cause the equilibrium constant to increase?

Is metalloid an insulator

What is a example of a population

Which of the following statements holds true for a chemical change? OA In a chemical change, no new substance is formed. B. In a chemical change, a substance changes its phase. oc. In a chemical change, the molecular structure of a substance changes.

What is the name of the branch of science that specifically studies the conversion of chemical energy to electrical energy and vice versa? biochemistry electrochemistry organic chemistry thermodynamics

What is the symbol for heat