What happens to the number of valence electrons as you move from left to right in the periodic table?

Write a hypothesis that answers the lesson question, “while observing a chemical reaction, how can you tell which reactant is limiting? ” hypothesis: if a substance is the limiting reactant, then . . because . .

For each of the compounds below, show that the charges on the ions add up to zero. a. kbr b. cao c. li(2)o d. cacl(2) e. alcl(3)

George is a dalmatian puppy. describe what happens to light that allows you to see george’s black and white coat.