What is the total number of different elements present in NH4NO3?

(1) 7 (3) 3

(2) 9 (4) 4

What is the temperature at which a solid melts? a physical property a chemical property a chemical change a physical change

When energy is transferred to ocean water from moving air above it what happens to most of the energy a. it reflects off the surface of the water b. it pushes the water forward c. it moves through the water d. it causes the water to evaporate

What is the pressure in pascals if the pressure is equal to 380 torr

Describe the different types of solutions that can be formed by the combination of solids, liquids, and gases

Which statements about cirrus clouds are true? Choose all answers that are correct. A. Cirrus clouds form high in the sky. B. Cirrus clouds usually mean fair weather. C. Cirrus clouds near the ground are called fog. D.

A phase change from a solid to a gas is called what

What is hydrocarbon?

Why did most scientists reject Wegner's theory for nearly a half century?

Define prediction and explain how it is used to formulate a hypothesis.

A group of organisms that breed and produce offspring that can breed. A. Species B. ecosystem C. Biodiversity