Suppose a skier is standing still at the top of a hill. what kind of energy does the skier have

When urea dissolves in water, the beaker becomes cold. Which statement describes this process? A) The ΔHsolvation is endothemic but the overall ΔHsolution is exothermic. B) The ΔHsolvation is exothermic and the overall ΔHsolution is exothermic.

When measuring Potassium with an ion-selective electrode by means of a liquid ion-exchange membrane, what antibiotic will be incorporated into the membrane?

How can you determine if a reaction is an acid base reaction?

For every action force there is an equal but opposite reaction force

Mixture's and solutions

Write a net ionic equation for the overall reaction that occurs when aqueous solutions of phosphoric acid (h3po4) and potassium hydroxide are combined. assume excess base. use the pull-down boxes to specify states such as (aq) or (s).

What are the coefficients that will balance the skeleton equation below? n + h ⟶ nh?

Restate Newtons first law in terms of acceleration

Why is burning is not a recommended method of disposing plastics

Why do cells have a plasma membrane? A. to separate protein from the nucleus B. to distinguish plants from animals C. to define the size of the cell D. to separate the inside of the cell from its enviroment