Why dont we include the mass of an atoms electrons in the atomic mass?

The heat capacity of a sample should be divided by which quantity to find the specific heat capacity? temperature in degrees Celsius temperature in kelvins volume in liters mass in grams

Determine the number of atoms and the mass of zirconium, silicon and oxygen found in 0.3384 Mol of zircon ZrSiO4, a semiprecious Stone.

What's a period? What do elements in the same period have in common?

What kinds of scientific investagations involve making observations

Nuclei of U-238 atoms are

What happens to a reactant molecules when forming product molecules

Which is the atomic number of an atom with six valence electrons

O2 + CS2 → CO2 + SO2 Which of the following shows the equation balanced?

Convert 970. mm Hg to atm.

The addition of a catalyst in a chemical reaction (A) increases the concentration of products at equilibrium. (B) increases the fraction of reactant molecules with a given kinetic energy.