Which of the following is not needed to make a model of the water cycle

. an energy source

. water

. a closed container

. a drain

Which of the following is not a characteristic of electromagnetic light waves?

65 million years ago there was a mass extinction that is best kno

How many atoms are in 0.30 moles of sulfur dioxide gas at stp? A. 6.0 x 10 ^23 B. 1.806 x 10 ^23 C. 2.01 x 10 ^24 D. 1,806

Which of the following chemical symbols represents the element silver? a. s b. ag c. au d. si user: what is the chemical symbol for lead? a. l b. k c. le d. pb

Describe, in your own words, why sugar will dissolve faster in hot tea than it will in cold tea. Be specific in your explanation.

Most metals are solid at room temperature, malleable, ductile, good conductors of heat and electricity, and react in acids to produce hydrogen gas. which of the properties mentioned is a chemical property? a. are malleable b. reacts with acids c.

Silver tarnishes when it comes into contact with hydrogen sulfide in the air. physical property or chemical property

When a volcanic irruption adds new rock to existing land and forms new islands is it considered destructive?

How many neutrons are in Cesium-130 (Cs) ? 55 75 130 185

An atom in a pure metal that's face-centered cubic has ___ neighbor atoms.