The element whose atomic number is 13 has how many valence electrons electron configuration

Which of the following is one part of a chemical formula? A. A number that shows the total atomic mass of the substance B. The full name of each element shown C. The symbol of each element in the substance D.

A patient needs to be given exactly 500 ml of a 5.0% (w/v) intravenous glucose solution. the stock solution is 35% (w/v). how many milliliters of the stock solution are needed to prepare the fluid for the iv bag?

The Wind chill index tells you A. the temperature of the water during winter B. the amount of moisture in the air C. how wind speed affects heating needs for structures D. how wind and temperature affect your body in winter

When an ionic compound such as sodium chloride (NaCl) is placed in water, the component atoms of the NaCl crystal dissociate into individual sodium ions (Na+) and chloride ions (Cl-). In contrast, the atoms of covalently bonded molecules (e. g.

What is the balance of NH3+HCL=NH4CL+H2O

What happens to the volume of a substance as temperatures rises?

Find the total number of atoms in a sample of cocaine hydrochloride, c17h22clno4, of mass 22.5 mg.

What is the relationship between chemical equilibrium and the rates of forward and reverse reaction

What is the valence of Fluorine

When liquid helium is exposed to room temperature, it forms a gas. Which best explains why this happens? The liquid helium absorbs energy from the air in the room. The particles in the air absorb the energy of the liquid helium.