It is a hot summer day. You fill your glass with ice and pour in some sweet tea. What form of energy is found in the ice cubes?

Why do new moons parallel the path of the sun?

Hydrogen is an element with two naturally occurring isotopes: 2 H and 3 H. This means that 2 H, which has a mass number of 2, has fewer than 3 H, which has a mass number of 3. True/False

Ester molecules are named for the alcohol and acid that form them using the convention For example, methanol ethanoic acid combine to make methyl ethanoate. Name the esters formed from a. isopropanol methanoic acid b. caproic acid butanol c.

If a sealed syringe is plunged into cold water, in which direction will the syringe piston slide? A. in B. out C. No movement will occur D. The direction cannot be predicted

How many energy levels are partially or fully occupied in a neutral atom of calcium?

Which pair of nitrogen bases will form a bond in a DNA molecule? a. cytosine and adenine b. adenine and thymine c. guanine and thymine d. thymine and cytosine

Most meteors that fall into the earths atmosphere burn up before reaching the ground. Why is this?

Imagine a chemist is in the lab and trying to make some chemical reactions happen. In one reaction she reacts chemicals in an exothermic reaction and there is an increase in entropy.

Which of the following requires an oxidizing agent? Al yields Al3+ 2 O yields O2 Cl2 yields 2 Cl- Ag + yields Ag

Type of ion formed by group 2A elements