Which best describes how an ionic bond forms? A. Two molecules share an electron. B. One atom pulls an electron from another atom. C. Two atoms share valence electrons. D. Two atoms both lose an electron.

Which sequence represents heat being removed from matter? A. solid→gas→liquid B. Gas→solid→liquid C. Gas→liquid→solid

Which of the following ionic compounds would be considered insoluble in water? A. Cs2CrO4 B. (NH4) 2CrO4 C. CaCrO4 D. Na2CrO4

Cody uses a can opener to open a can of soup. The can opener can be referred to as what? wedge lever simple machine complex machine

What is the pH of 0.0086M LiOH solution

A gas occupies 11.2 liters at 0.860 atm. what is the pressure if the volume becomes 15.0 L

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