When you add the pH value of a solution to the pOH value of the same solution together, at 25 degrees C, what should the combined value be?

ANSWER CHOICES
1. 7
2. 0, they should cancel each other out
3. 14
4. It’s indeterminate until you know the concentration values of hydrogen and hydroxide ions in solution

Calculate the estimated density of each ball. use the formula d = m/v where d is the density, m is the mass, and v is the volume. record your calculations in table a of your student guide. given that the density of water is 1.0 g/cm3, make a prediction about whether each ball will float in water. record your prediction in table a. what is the estimated density of the table tennis ball? record your answer to the nearest hundredth

The bohr model of the atom explained why emission spectra are discrete. it could also be used to explain the photoelectric effect. which is a correct explanation of the photoelectric effect according to the model?

Which is the best term to use when describing the energy of position? chemical kinetic potential electromagnetic