Which contributes more to an atom's mass: electrons or protons? which contributes more to an atom's size? 1. protons; protons 2. electrons; electrons 3. electrons; protons 4. protons; electrons?

Which two things drive the Global Ocean Conveyor Belt? temperature and density the moon and gravity salt and wind the moon and tides

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Most of the energy from a lower trophic level is converted to mass. energy. heat. height.

Which of the following changes to a pipe would increase the conductance by a factor of 12? A. Quadrupling the length and tripling the radius. B. Reducing the length by a factor of and doubling the radius. C.

Determine the percent composition of the following: 9.14 g sample contains 4.77 g of carbon, 1.19 g of hydrogen, and 3.18 g of oxygen.

For the following SN1 solvolysis reaction, select the correct rate equation and the overall reaction order (note: CH3OH is the solvent for the reaction). (CH3) 3CCl + CH3OH → (CH3) 3OCH3 + HCl

Which of the following is not a possible sublevel? 1s 2p 3f 4d

Fish breathe oxygen, o2, dissolved in the water. since water is a polar substance and oxygen is a nonpolar substance, how can there be any oxygen, o2, in the water?

Barium carbonate, baco3, is stable at ambient temperatures, but decomposes to barium oxide and carbon dioxide at higher temperatures.

How do an isotope and a radioactive isotope differ?