100 90
80
NaNO
70
K Cro
60
KNO,
Cache
Solubility (g of salt in 100 g H,0)
50
Pb(NO3)2
KCI
40
Naci
30
20
KCIO,
10
Ce (SOA
0
0
10 20 30 40 50 60 70 80 90 100
Temperature (°C)
A student dissolves 20g of KCIO3 in H2O at 80°C. The solution is:
saturated
supersaturated
cannot be determined
unsaturated

The pressure inside a hydrogen-filled container was 2.10 atm at 21 ? c. what would the pressure be if the container was heated to 92 ? c ?

What will most likely happen in the absence of a cell membrane? a) photosynthesis will not take place. b) the cell will not store food, water, nutrients, and waste. c) energy will not be released during cellular respiration. d) substances will pass in and out of the cell in an uncontrolled manner.

One way in which the useful metal copper is produced is by dissolving the mineral azurite, which contains copper(ii) carbonate, in concentrated sulfuric acid. the sulfuric acid reacts with the copper(ii) carbonate to produce a blue solution of copper(ii) sulfate. scrap iron is then added to this solution, and pure copper metal precipitates out because of the following chemical reaction: (s) (aq) (s) (aq) suppose an industrial quality-control chemist analyzes a sample from a copper processing plant in the following way. he adds powdered iron to a copper(ii) sulfate sample from the plant until no more copper will precipitate. he then washes, dries, and weighs the precipitate, and finds that it has a mass of .