An atom with 82 protons, 125 neutrons and 78 electrons will have a mass number of

An experiment is performed on a puck on a level air hockey table, where friction is negligible. a constant horizontal force is applied to the puck, and the puck's acceleration is measured.

Which stament about energy is mostly correct

What happens to the female sex cell that has left the ovary if it isn't fertilised

What part of the cell contains most of the cell genetic information in the eukaryotic cell

The iupac name for baking soda, a common leavening agent, is sodium bicarbonate. identify the correct formula.

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

Which of the following statements about igneous rocks is correct A. intrusive igneous rocks are formed when magma is called above the ground. B. Extrusive igneous rocks are formed when magma is cooled above the ground C.