How can you tell if a chemical reaction occurred?

A. Change in color

B. Created gas

C. Change in Temperature

D. Formed a precipitate

E. All of the above

Which of the following are true of phases? Check all that apply. A. The particles in a liquid are in a fixed location. B. Gases have more kinetic energy than liquids or solids. C. The particles of a solid vibrate. D.

How much concentrated solution would you take to prepare 1.15 L of 0.105 M HNO3 by mixing with water?

Are Noble Gases nonmetals?

When light from the sun warms the ground, the transfer of heat energy is called A) conduction. B) power. C) radiation. D) reflection.

Describe the similarities and differences between the motion of particles in liquids and gases.

Can y'all give me some examples of physical changes

A nitrogen-containing compound shows no absorption band at ∼3400cm-1 and no absorption bands between ∼1700cm-1 and ∼1600cm-1. what class of compound is it

What is the mass of 35.2 ml of a solution that has a density of 1.12 g/cm (in dimensional analysis)

What is the molecular geometry, or shape, of beryllium chloride (becl2) ?

What is the best category for nf3? 1. amphoteric ion 2. lewis acid 3. salt 4. bronsted-lowry acid 5. arrhenius acid 6. arrhenius base 7. lewis base 8. weak electrolyte?