34- A solution is A. a mixture of very fine particles B. A heterogeneous mixture

Question

34- A solution is A. a mixture of very fine particles B. A heterogeneous mixture C. A homogeneous mixture D. A mixture of two immiscible liquids 35- The right combination to form a solution is A. Solvent: polar; solute: polar B. Solvent: non polar; solute: polar C. Solvent: polar; solute: liquid non polar D. Solvent: liquid polar; solute: liquid non polar 36- In a hot summer day the temperature is 33.0° C. The temperature in oF is: A. 89.40 B. 91.40 C 72.30F D. 121.70 F 37-What is normal body temperature of 37 in kelvins? A. 210 K B. 410 K C. 310 K D. 110 K 38- Potassium forms a compound with bromine which includes one ion of each element. Which other element most likely bonds with bromine in the same ratio? A Lithium (Li) B. Sulfur (S C. Oxygen (O) D. Neon (Ne) The chart shows the variation of solubility with temperature of various solutes in water. Analyze it and then answes the questions 39 to 41 0 10 20 30 40 50 60 70 8 90 00 39. As the temperature increases, what happen with the solubility of potassium chlorate (KCIO3)? A. It decreases B. It increases

Explanation / Answer

Q34

a solutino is any mixture of solute + solvent

from the list

choose: a homogeneous mix

Q35

there must be equal type of mateiral, so "like dissolves like"

from the list

choose A

Q36

T(f) = TC*1.8 +32 = 33*1.8 + 32 = 91.4 °F , choose B

Q37

Tf = 37°C

T(k) = TC + 273 = 37+273

T = 310 K

Q38

K-Br

then

Li-Br will be similar, since lithium and potassium are in the same family

Q39

typically, as T increases, solubility of KClO3 will increase

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