The original substance in a

chemical reaction; either

disappears or diminishes

If you reacted 88.9g of ammonia with excess oxygen, what mass nitric oxide would you expect to make

Does the moon's shadow change relative to the sun

What is the mass number of the atom that has 29 protons and 35 neutrons?

Which quantum number distinguishes the different shapes of the orbitals?

For the chemical equations shown below, label each reactant as either acid or base, and each product as either conjugate acid or conjugate base according to the brønsted-lowry definition. drag each label to the appropriate target.

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?