9) An economy car has an EPA highway mileage rating of 22 km/L. What is the mileagerating in miles per gallon?(a) 3.6 mi/gal (b) 9.4 mi/gal(c) 35 mi/gal (d) 52 mi/gal(e) 130 mi/gal Step-by-step use the conversion factors with a starting point put lines in between the numbers and cancel the units 10) If a textbook measures 24.5 cm by 21.5 cm, what is the area in square inches?(a) 9.65 in^2(b) 81.6 in^2(c) 207 in.^2(d) 527 in.^2(e) 1340 in.^2 Step by step use the conversion factors with starting point and put lines in between the numbers and cancel the units 11) Which of the following properties of kerosene is a chemical property?(a) soluble in gasoline (b) flammable with oxygen(c) colorless liquid (d) boiling point, 174°C(e) density, 0.730 g/mL Step by step solutions 12) What happens to the velocity of a particle when a gas is heated?(a) velocity increases (b) velocity decreases(c) velocity remains constant (d) depends on the gas(e) none of the above Step by step solutions 13) The total mass and energy before a chemical change is equal to the total mass andenergy after a chemical change. What law is illustrated by this statement?(a) law of conservation of mass(b) law of conservation of energy(c) law of conservation of mass and energy(d) law of constant composition(e) none of the above Step by step solutions Answer all questions
9) An economy car has an EPA highway mileage rating of 22 km/L. What is the mileage
rating in miles per gallon?
(a) 3.6 mi/gal (b) 9.4 mi/gal
(c) 35 mi/gal (d) 52 mi/gal
(e) 130 mi/gal
Step-by-step use the conversion factors with a starting point put lines in between the numbers and cancel the units
10) If a textbook measures 24.5 cm by 21.5 cm, what is the area in square inches?
(a) 9.65 in^2
(b) 81.6 in^2
(c) 207 in.^2
(d) 527 in.^2
(e) 1340 in.^2
Step by step use the conversion factors with starting point and put lines in between the numbers and cancel the units
11) Which of the following properties of kerosene is a chemical property?
(a) soluble in gasoline (b) flammable with oxygen
(c) colorless liquid (d) boiling point, 174°C
(e) density, 0.730 g/mL
Step by step solutions
12) What happens to the velocity of a particle when a gas is heated?
(a) velocity increases (b) velocity decreases
(c) velocity remains constant (d) depends on the gas
(e) none of the above
Step by step solutions
13) The total mass and energy before a chemical change is equal to the total mass and
energy after a chemical change. What law is illustrated by this statement?
(a) law of conservation of mass
(b) law of conservation of energy
(c) law of conservation of mass and energy
(d) law of constant composition
(e) none of the above
Step by step solutions
Answer all questions
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