What two sublevels of orbitals contain valence electrons? (s, p, d, or f) ?

No two elements can have the same spectrum. True False

what might cause the goldfish population to drop if the temperature moves out of its normal range? Name three things

Br2 + NaF Right arrow. Which best completes the chemical equation?

How do trans fats complicate the previous description of saturated and unsaturated fats? A) Trans fats are unsaturated because they have one or more double bonds, but their molecules are straight due to that they have been generated from newly

Protein in foods are broken down into amino acids through what process? Explain your answer. a. adsorption b. elimination c. chemical digestion d. mechanical digestion

Fluorine-18, which has a half-life of 110 min, is used in PET scans. a. If 100. mg of fluorine-18 is shipped at 8:00 a. m., how many milligrams of the radioisotope are still active after 110 min? b. If 100. mg of fluorine-18 is shipped at 8:00 a. m.

The reaction of methane with water to form carbon dioxide and hydrogen is non - spontaneous at 298 k. at what temperature will this system make the transition from non-spontaneous to spontaneous? the data refer to 298 k.

The sedimentary rock formed when water deposits tiny particles of clay in very thin flat layers is called? a. gymsum b. shale c. limestone d. calcite

What change into velocity

Would you expect the h atoms to remain bonded to each other, or would the molecule fall apart?