What are the terms that describe these values for the element oxygen 16 to 8

The official web site of the Nobel Prize explains that Marie Curie's chemistry prize was partly for her discovery that the radioactivity of a substance is unaffected when it undergoes a chemical reaction.

What is the amount of heat released when 25g of water cools 12.5 degrees C?

What is sociology

A decrease in pressure has the greatest effect on a solution that contains ... ?

Which compounds yield hydrogen ions as the only positive ions in an aqueous solution? (1) H2CO3 and HC2H3O2 (2) H2CO3 and NaHCO3 (3) NH3 and HC2H3O2 (4) NH3 and NaHCO3

You need to make 10 mL of 2 mg/ml solution of protein and you have 25 mg/mL solution. How much protein solution and water do you need to mix in order to make the required solution?

The definition of volume is? a) width*height b) the space occupied by mass c) the space occupied by a liquid d) the mass of liquid required to fill a container

What is the empirical formula of a substance that is 53.5% C, 15.5% H, 31.1% N?

What is the lowest layer of the atmosphere and what is its highest altitude?

An atom that has 84 protons and 86 neutrons undergoes a reaction. At the end of the reaction, it has 82 protons and 84 neutrons. What happened to the atom?