Which of these substances is a compound?

a.) chlorine

b.) nitrogen

c.) uranium

d.) ammonia

You accidentally drop your ring into a graduated cylinder. the ring has a mass of 5 grams and the water level of the cylinder rises from 5mL to 7.5mL. what is the density of the ring?

3) A defense football player on one team tackles the other team's quarterback, who is running down the field. The quarterback is pushed to the ground by the defensive player. 4) apply Newton's first law to explain what happened?

What is the thermometer

Scientists began to describe matter as behaving like a wave rather than a particle after they observed which phenomenon? A. The flow of electrons when certain types of light are shined on a metal surface B.

Which statement is true about the formation of bounds

How to calculate kinetic energy? (physics/physical science)

What's the difference between the offspring of an asexual organism and a sexual organism

The contamination that results from the spread of bacteria from meat to vegetables is called

A rock has a mass of 5 kg on the moon. What is the mass of the rock on the earth

A battery applies 45 volts to a circuit, while an ammeter reads 10 ma. later, the ammeter reading drops to 7 ma. assuming the resistance has not changed, the voltage must have