How do sound waves travel? A. Sound causes the air near it to vibrate inwards.

B. Sound transforms waves into different frequencies.

C. Sound waves radiate outward from a central point.

D. Sound moves randomly in different directions.

Please help me!

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 . .

What material does not melt at any temperature

Which statement is true about hcl? (5 points) select one: a. it is a salt because it increases the concentration of metallic ions. b. it is a salt because it is formed by the reaction of an acid and a base. c. it is an acid because it increases the concentration of hydroxyl ions. d. it is an acid because it increases the concentration of hydronium ions.