When elements bond together or when bonds of compounds are broken and form a new substance A. Chemical Change
B. Energy
C. Fireworks
D. Chemical Reaction

Which of the following is a compound? a.carbon b.oxygen c.hydrogen d.water

Which of these is an example of pseudoscience? a) predicting the time of sunrise based on data on position of earth b) predicting the date of the moon phases based on data on position of earth c) predicting eclipses based on the position of the sun and the moon d) predicting future events in a person's life based on the position of the moon

Select the statement that describe chemical properties a. antacid tablets neutralize stomach acid b. helium is the lightest monatomic element c. water freezes at 0 celsius d. mercury is liquid at room temperature