100 90
80
NaNO
70
K₂Cr₂O
60
Caci
Pb(NO3)2
KNO
Solubility (g of salt in 100 g H,0)
Given the solubility curve to the left, which salt is most soluble
at 0°C?
KCI
40
NaCl
30
KCIO
20
10
Ce (SO
0
0
10 20 30 40 50 60 70 80 90 100
Temperature (°C)
Оа
KCIO3
Ob
KCI
Oc
K₂Cr₂O,
Od
NaCl

An electrons position cannot be known precisely only it's probability of being in a certain location can be known

Astudent made a graph plotting the progress of a reaction over time. the student forgot to label the y-axis of the graph. a graph is shown with two graph lines. one graph line starts at a higher position on the y axis and slopes downwards towards the right. the other graph line starts at a lower position on the y axis and slopes upwards towards the right. the two graph lines stop short of intersecting each other and continue as separate lines which gradually become straight and parallel to the x axis. a vertical line is shown at a point where the two graph lines finally became parallel to the x axis. this vertical line is labeled equilibrium. the title on the x axis is time and an arrow pointing towards the right is shown above time. the title on the y axis is left blank. what best explains the label that the student should use on the y-axis? amount, because as the amount of product decreases, the amount of reactant increases over time. reaction rate, because forward and backward reaction become equal at equilibrium. amount, because the amounts of reactants and products become constant after equilibrium is reached. reaction rate, as the rate of forward reaction increases and rate of backward reaction decreases over time.

The density of the solid phase of a substance is 0.90 g/cm3 and the density of the liquid phase is 1.0 g/cm3. a large increase in pressure will a. lower the freezing point b. raise the freezing point c. lower the boiling point d. raise the triple point e. lower the triple point