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
astra-53 [7]
3 years ago
15

Which of the following describes a mixture?

Chemistry
1 answer:
Aliun [14]3 years ago
4 0
The correct answer is C. Explanation: a mixture is the physical combination of two or more substances who’s identities are retained. Therefore, c is correct.
You might be interested in
What would happen to the annual rates of limestone (CaCO3) precipitation in the ocean if the ocean water were to become much war
stiv31 [10]

Answer:

CaCO3 exoskeleton dissolves in acidic water

Explanation:

The increasing CO2 level makes the ocean water acidic and hence reduces the pH. In such acidic environment, marine organism that produce calcium carbonate shells or skeletons are negatively affected. Coral reefs and coralline algae abilities to produce skeleton also reduces.  

Calcium carbonate dissolves in acid. Thus, the more acidic the ocean water is the faster and easier it is to dissolve the exoskeleton and shell of marine organisms made up of calcium carbonate  

4 0
3 years ago
Organisms can be classified either as multi-celled or single-celled. Which of the following groups contains at least some single
VLD [36.1K]
Ok, So bacteria and fungi are unicellular or single-celled. While Animals are multi-celled.  
6 0
3 years ago
Read 2 more answers
A sample of methane gas occupies 4.50 gallons at a temperature of 80.0 F. If the pressure is held constant, what will be the vol
Marat540 [252]

Answer:

21.19 L or 5.6 gallons

Explanation:

Data Given

initial volume V1 = 4.50 gallons

convert volume from gallons to L

                               1 gallon = 3.78541 L

                               4. 50 gallon = 3.785 L x 4.50

So,                        

initial volume V1 =  17.03 L

final Volume V2 = ?

initial Temperature T1  = 80° F

convert Temperature to Kelvin

                              T1 = ( 80° F -32) / 1.8 +273

                               T1 = 26.7° C + 273 = 299.7 K

final Temperature T2 = 100° C

convert Temperature to Kelvin

                                  T2 = 100° C + 273 = 373 K

Solution:

This problem will be solved by using charles' law equation at constant pressure.

The formula used

                      V1 / T1 = V2 / T2

As we have to find out volume, so rearrange the above equation

                      V2 = V1 x T2 / T1

Put value from the data given and conversion information in above equation

V2 =  17.03 L x 373 K / 299.7 K

V2 =  21. 19 L

So the final volume of Methane gas = 21.19 L

Or for Volume in gallons

1 L = 0.26

21.19 x 0.264 = 5.6 gallons

7 0
3 years ago
Tides are the rise and fall of surface levels of Earth's ocean water caused by the gravitational effects of which two celestial
NeTakaya

Answer:

<h3>D)Moon and sun</h3>

Explanation:

Because the gravitational pull of the moon is weaker on the far side of the Earth, inertia wins, the ocean bulges out and high tide occurs.

hope it helps:)

4 0
3 years ago
Read 2 more answers
What type of weather is most likely expected in a location that has a very high amount of water vapor in the atmosphere? Cloudy
solong [7]

Answer:

I'd say Low humidity

Explanation:

Merry Christmas!

6 0
3 years ago
Read 2 more answers
Other questions:
  • What is the purpose of a flame test?
    7·1 answer
  • What is the number of protons plus the number of neutrons equal to?
    5·1 answer
  • How much heat is released when 6.00 g of methane is combusted using the reaction below? CH4 + 2O2 ? CO2 + 2H2O ?Hrxn = -890. KJ
    15·2 answers
  • Which of the following observations indicates that an atom has neutrons?
    9·2 answers
  • Please help to answer these questions please just give the option, no need explanation. Thanks
    15·2 answers
  • What are valence shell electrons?
    7·1 answer
  • the perimeter of a isosceles is 48 meters. the upper base is 12 meters shorter than the lower base x.each leg is 12 meters short
    14·1 answer
  • This is Science
    11·2 answers
  • What protect the contents of the nucleus
    15·2 answers
  • What Is Photosynthesis?​
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!