What contains 15 neutrons and 13 protons?

Calculate percent composition of a compound that forms when 222.6g n combines 77.4g o

What is the formula for magnesium nitride

The statement that people who exercise for an hour may have lower cholesterol levels is it a hypothesis, law, or observation?

How Does The Modern Periodic Table Arrange Elements? By Atomic Mass By Atomic Number By Number Isotopes By Electron Mass

What does do that the urine is conductive of the electricity? What element?

14. Two or more substances that are together but do not combine to form a new, pure substance.

A solution of a compound with a known extinction coefficient of 23,100 M-1cm-1 has an absorbance of 0.735 in a 1.30cm path length, what is the concentration of the solution

Balance the following equation with the smallest whole number coefficients. Choose the answer that is the sum of the coefficients in the balanced equation. Do not forget coefficients of "one". RbOH + H3PO4 → Rb3PO4 + H2O

What is the temperature of 100 liter container having 1 mole of an ideal gas at a pressure of 20 kilopascals

5.2*10^26 molecules of ch4 in volume