What type of reaction is shown in the equation below?

Sr + O2 à SrO

The length of a vector arrow represents its magnitude and the point represents its direction true or false apex

A5 mole sample of liquid acetone is converted to a gas at 75.0°c. if 628 j are required to raise the temperature of the liquid to the boiling point, 15.600 kj are required to evaporate the liquid, and 712 j are required to raise the final temperature to 75.0°c, what is the total energy required for the conversion?

The footprints of a dinosaur and the burrow of an ancient shrimp are examples of which kind of fossils