What are the chemical changes taking place?

What are the physical changes taking place?

How much of a sample remains after five half-lives have occurred? 1/5 of the original sample 1/25 of the original sample 1/32 of the original sample 1/64 of the original sample BOB

Which statement best explains why Newton's first law is correct even though real-world objects tend to eventually stop moving instead of remaining in motion? A.) Newtons first law does not apply in the real world. B.

Is the mass of the deflated baloon different from the mass of the inflated balloon?

The conversion of chemical energy to mechanical energy is best described by which example? A. sunlight warming the ground B. electricity boiling water C. fuel being combusted to power a rocket

The average kinetic energy of the particles in a gas A. is not affected by the temperature of the substance. B. increases as the temperature of the substance decreases. C. is proportional to the temperature of the substance. D.

What larger energy does light energy come from?

Allows water to pass through easily

Which is a cause of desertification? A. farming B. creating reservoirs C. overgrazing D. driving motor vehicles

What happens when the threat of exposure to dirty air is reduced in a community? There is enough oxygen available for people's lungs to function normally The amount of indoor air pollutants released during a fossil fuel burn decreases There is a

Is chicken noodle soup an element, a compound, a homogeneous mixture, or a heterogeneous mixture?