PART 2
I NEED HELP ASAP PLEASE IF I ACE THIS TEST I WILL GET AN XBOX ONE S SO PLEASE HELPP! BTW WORTH 98 POINTS
Which statement is true about a liquid but not a gas?
Question 10 options:
It allows particle to move past each other relatively easily.
It has more internal energy than the solid state.
It will change shape and take the shape of its container.
It has close to a constant volume as pressure is applied to it.
Question 11 (1 point) Question 11 Unsaved
Silver is a white metal that is an excellent conductor. Silver tarnishes when exposed to air and light. The density of silver is 10.49 g/cm3. The melting point is 962C and the boiling point is 2000C.
A chemical property of silver is
Question 11 options:
melting point.
that it is a conductor.
tarnishes in air.
density.
Question 12 (1 point) Question 12 Unsaved
Carl had four metal blocks.. Each block was a different type of metal, but it had the same size and volume. All four blocks were weighed on a balance and their masses recorded in the table below. Which one of these metals is the least dense?
Block 1: 65 grams
Block 2: 32 grams
Block 3: 100 grams
Block 4: 79 grams
Question 12 options:
Block 1
Block 2
Block 3
Block 4
Question 13 (1 point) Question 13 Unsaved
Which state of matter has a defined shape?
Question 13 options:
solids and liquids
solids only
liquids only
liquids and gases
Question 14 (1 point) Question 14 Unsaved
Maria and Carla were hiking when Maria tripped, fell, and sprained her ankle. Carla took out the first-aid kit and unwrapped a cold pack. Carla popped a vial that was inside the cold pack. The two chemicals inside the pack mixed together and the pack began to get icy cold. Carla applied the pack to Maria's ankle.
What kind of reaction occurred in the cold pack? What evidence supports your answer?
Question 14 options:
It is a physical change because the substance in the vial dissolved in the pack's liquid.
It is a chemical change because heat energy is absorbed and the pack gets colder.
It is a physical change as evidenced by a drop in temperature.
It is a chemical change because two different chemicals are mixed together.
Question 15 (1 point) Question 15 Unsaved
You are asked to determine the identity of an unknown liquid and can measure only one physical property. You heat the liquid and record that the liquid turns to vapor at 100°C. This demonstrates which physical property?
Question 15 options:
boiling point
melting point
combustibility
ability to conduct electricity
Question 16 (1 point) Question 16 Unsaved
Mark places four objects in a tank of water. He makes the following observations.
· A beach ball floats.
· A penny sinks.
· A soda can floats.
· A piece of chalk sinks.
Which statement is correct based on Mark's observations?
Question 16 options:
The penny and the chalk have a density greater than water.
The beach ball and the can of soda have a density greater than water.
The beach ball and the can of soda have a density equal to water.
Small objects always sink in water.
Answers
Just passed these on the quiz:
- 10. D
- 11. C
- 12. Block 2
- 13. B
- 14. B
- 15. A
- 16. A
wer: Block 2: 32 grams
Hi,
Q10. Which statement is true about a liquid but not a gas?
Answer: It has close to a constant volume as pressure is applied to it.
Q11. Silver is a white metal that is an excellent conductor. Silver tarnishes when exposed to air and light. The density of silver is 10.49 g/cm3. The melting point is 962C and the boiling point is 2000C.
A chemical property of silver is
Answer: tarnishes in air.
Q12. Carl had four metal blocks.. Each block was a different type of metal, but it had the same size and volume. All four blocks were weighed on a balance and their masses recorded in the table below. Which one of these metals is the least dense?
Answer: Block 2
Q13. Which state of matter has a defined shape?
Answer: solids only
Q14, Maria and Carla were hiking when Maria tripped, fell, and sprained her ankle. Carla took out the first-aid kit and unwrapped a cold pack. Carla popped a vial that was inside the cold pack. The two chemicals inside the pack mixed together and the pack began to get icy cold. Carla applied the pack to Maria's ankle.
What kind of reaction occurred in the cold pack? What evidence supports your answer?
Answer: It is a physical change because the substance in the vial dissolved in the pack's liquid.
Q.15. You are asked to determine the identity of an unknown liquid and can measure only one physical property. You heat the liquid and record that the liquid turns to vapor at 100°C. This demonstrates which physical property?
Answer: boiling point
Q16. Mark places four objects in a tank of water. He makes the following observations.
A beach ball floats.
· A penny sinks.
· A soda can floats.
· A piece of chalk sinks.
Which statement is correct based on Mark's observations?
Answer; The penny and the chalk have a density greater than water.
Thanks