What is the concentration of Hions at a pH = 2? mol/L
In Step 5, you will calculate H*OH- ratios for more
extreme pH solutions. Find the concentration of Hions
to OH ions listed in Table B of your Student Guide for a
solution at a pH = 2. Then divide the concentration by
the OH concentration. Record these concentrations and
ratio in Table C.
What is the concentration of OH-ions at a pH = 2?
mol/L
What is the ratio of H+ ions to OH-ions at a pH = 2?

The diagrams show objects’ gravitational pull toward each other. which statement describes the relationship between diagram x and y? gravity attracts only larger objects toward one another. gravity attracts larger objects only if they are close to one another. if the masses of the objects increase, then the force between them also increases. if distance between the objects increases, then the amount of force also increases.

Agroup of students is studying convection current. they fill two identical balloons with the same amount of helium. one balloon is placed in a freezer and the other is in an area with warm air. after 10 minutes, the balloon are released from a height of 1 meter. which of the following to the students most likely observe? a) the warm balloon expands and rises. the cold balloon shrinks and sinks b) the balloon both rise. the cold balloon is larger than the warm balloon c) the cold balloon expands and rises. the warm balloon shrinks and sinks d) the balloon rise at the same rate. both balloons are the same size

What is the mass of 2.00 l of an intravenous glucose solution with a density of 1.15 g/ml?