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
ra1l [238]
2 years ago
13

Which of the following is an example of a physical change?

Chemistry
1 answer:
Solnce55 [7]2 years ago
5 0

Answer;

crushing an aluminum soda can

Explanation;

-A physical change is a type of change in which the form of matter (substance) is altered but one substance is not transformed into another different substance. For example, Crushing an aluminium soda can : after crushing can changes its shape, size but it still remain Aluminum so it is a physical change.

-A chemical change is a process where one or more substances are altered into one or more new and different substances.


You might be interested in
You have 4 moles of a gas in a 50 L container held at 2 atm pressure. Currently the temperature is 27 ºC. R = 0.0821 L*atm/(mol*
Mariulka [41]
The formula used for determining gas pressure, volume and temperature interaction would be PV=nRT. 

<span>• What is the temperature in Kelvins?
</span>You already right at this part. Kelvin temperature formula from celsius should be:
K= C+273.15= 
<span>K= 27 +273.15 = 300.15 
It is important to remember that the formula in this question is using Kelvin unit at temperature, not Celcius or Fahrenheit.
</span>
<span>• Assuming that everything else remains constant, what will happen to the pressure if the temperature decreases to -15 ºC?
</span>In this case, the temperature is decreased from 27C into -15C and you asked the change in the pressure.
Using PV=nRT formula, you can derive that the temperature will be directly related to pressure. If the temperature decreased, the pressure will be decreased too. 

<span> If you increase the number of moles to 6 moles, increase temperature to 400K and reduce the volume to 25 L, what will the new pressure be?
</span>PV=nRT
P= nRT/V
P= 6 moles* <span>0.0821 L*atm/(mol*K) * 400K/25L= 7.8816 atm</span>
3 0
2 years ago
Cells get energy from food to sustain the life of the organism.
Sati [7]
The answer is B hope this helped
4 0
3 years ago
Read 2 more answers
What is the best statement about the data collected in Amir’s table?
Strike441 [17]

Answer: The answer is D :)

Explanation:

3 0
3 years ago
Read 2 more answers
Which would be a better base to use if you wanted to remove a proton from ethyne?
myrzilka [38]
-NH2 is the most favorable for the reaction
5 0
3 years ago
At equilibrium, the amount of product is equal to amount of reactant <br> True o False
nydimaria [60]
The correct answer is true
3 0
3 years ago
Other questions:
  • Which is not the same as 5.63 <br> grams
    5·1 answer
  • Acetic acid (CH3COOH) is a weak acid that partially dissociates in water. Given the reaction CH3COOH(aq) ↔ CH3COO−(aq) + H+(aq)
    15·1 answer
  • For the reaction A(g) + 2 B(g) ↔ C(g) the initial partial pressures of gases A, B, and C are all 0.109 atm. Once equilibrium has
    5·1 answer
  • A student conducts an experiment to determine the effect of adding salt on the boiling temperature of water. The results are sho
    10·2 answers
  • 5) Calculate the volume, in liters, of 3.24 x 1022 molecules<br> CI2
    9·1 answer
  • How to find specific heat capacity of a liquid
    11·1 answer
  • The atmosphere is the air surrounding Earth and is made up of 78% _____, 21% oxygen, and other trace gases. Please help this is
    6·1 answer
  • 15.La voiture ................... devant cet hôtel .Single choice.
    6·1 answer
  • How many molecules of oxygen are produced when a sample of 38.9 g of water is decomposed by electricity?
    12·1 answer
  • Rounding to the nearest
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!