1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
adelina 88 [10]
3 years ago
8

A gas expands and does P-V work on the surroundings equal to 275 J. At the same time, it absorbs 216 J of heat from the surround

ings. What is the change in energy of the system?
Chemistry
1 answer:
mafiozo [28]3 years ago
7 0

Answer:

answer

Explanation:

sorry I do not know the answer, have a great day

You might be interested in
Ice must absorb heat to melt into water. What must water do to evaporate?
Flauer [41]
Increase in heat, molecules start to escape and it turns to vapor
3 0
3 years ago
Read 2 more answers
Carl hits a baseball with a force of 8 N. The next batter, Stacy, hits it with 12 N of force. Which ball will accelerate faster?
Marrrta [24]

Answer:

B.

Explanation:

6 0
3 years ago
Which of the following is an example of a model? PV=nRT, Geographical map, I believe that aliens exist, all of the above.
aleksandrvk [35]

<u>Answer:</u> The correct answer is geographical map.

<u>Explanation:</u>

Model is defined as the three dimensional representation of a proposed structure in a smaller scale.

For the given options:

<u>Option 1:</u>  PV = nRT

This is a proposed law. This law is known as ideal gas law. A law is defined as the rule which defined a correct procedure. For any gas behaving ideally, this law is used.

<u>Option 2:</u> Geographical map

Map is defined as the diagrammatic representation of an area of land or sea which also shows physical features, roads, cities etc..

A 3-D model can be prepared for geographical map.

<u>Option 3:</u> I believe that aliens exist

This is a hypothetical statement. It is a smart guess by the means of set of assumptions and observations. For its validation, we need to conduct some experiments.

Hence, the correct answer is geographical map.

3 0
3 years ago
Read 2 more answers
Qu 4.
Anna11 [10]

Answer:

It's the second one down.

Explanation:

Gold

Mass 197

Number of Protons: 79

Number of Neutrons: 197 - 79 = 118

Number of electrons: = number of protons = 97

3 0
3 years ago
Which of the following is a chemical property? a
laiz [17]
The answer is A (The ability to react with oxygen)
4 0
2 years ago
Read 2 more answers
Other questions:
  • Explain why atoms move at different speeds depending on whether they are in liquids or solids.
    15·1 answer
  • Windblown________ can wear away rock
    12·2 answers
  • Why does ice float after it crystallizes? Its mass is greater than water. Its density is greater than water. Its density is less
    11·2 answers
  • What is the percentage of s-character in an sp hybrid? O 25% 50% o 75% O 66%
    15·1 answer
  • When barium hydroxide and ammonium chloride react,the temperature of the mixture decreases.What kind of reaction is this?
    14·1 answer
  • If an object has more positive charges than negative charges, the object has an overall?
    14·1 answer
  • 2. What types of organisms have cells with very large vacuoles?
    14·1 answer
  • What is a material that easily transfers heat? <br><br> A. Insulator<br> B. Conductor
    8·1 answer
  • Calculate the pressure at which the volume of oxygen becomes tripled. if it initial volume at 3.00 atm at 75cm³. if temperature
    6·1 answer
  • How much heat is required to change 235 g of iodine at 25 degrees celsius into vapor at 198 degrees celsius? The melting point i
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!