When a gas in a container is squeezed to half its volume, its density
A) halves.
B) doubles.
C) quadruples.
D) remains the same.
Answer: B
You might also like to view...
A "nova" is the event that creates a planetary nebula
a. True b. False Indicate whether the statement is true or false
Answer the following statement(s) true (T) or false (F)
1.When a baseball pitcher throws a curveball, he or she puts top-spin on the ball. This causes the ball to interact with the passing air in such a way as to make the air push the ball downward perpendicular to the ball’s velocity. (This causes the ball to dive sharply as it approaches the plate, making it quite difficult to hit.) We would classify this force as a “lift” force on the ball.
Which contains more moles of material: 80 grams of helium gas (He, having atomic weight 4.0 g/mol) or 400 grams of argon gas (Ar, having atomic weight 40 g/mol)?
A) helium B) argon C) Both contain the same number of moles.
Carbon-14 has a half-life of 5730 y. A sample of wood has been recovered by an archaeologist. The sample is sent to a laboratory, where it is determined that the activity of the sample is 0.144 Bq/g
By comparing this activity with the activity of living organic matter, 0.230 Bq/g, the scientist determines how old the wood sample is, or more precisely, when the tree that the sample came from died. How old is the sample of wood? A) 3870 y B) 4250 y C) 4590 y D) 2630 y E) 2940 y