How many grams of KNO3 are present in 250 ml of 2.0 m potassium nitrate solution?

In pea plants, the allele for tallness (t) is dominant to the allele for shortness (t). in the cross between a tall pea plant and a short pea plant shown below, what is the probability that the resulting offspring will be tall? whats the percent

Which statement describes the phase change that occurs when dry ice is placed in an open container at room temperature?

How will the volume of a gas be affected if the pressure is tripled, but the temperature remains the same?