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
nataly862011 [7]
2 years ago
13

When a substance cannot be reduced by physical or chemical means to a simpler form, it is an example of a(n):

Chemistry
1 answer:
GREYUIT [131]2 years ago
6 0
The answer is c. Element
You might be interested in
During photosynthesis, plant cells use sunlight as an energy source; animal cells cannot do this. What substance do Animal cells
8090 [49]

Answer:

Chlorophyll

Explanation:

Photosynthesis is the process through which plant cells use carbon dioxide & water to create oxygen & energy rich organic compounds. They do so by converting sunlight ie light energy into chemical energy. This is possible due to presence of chlorophyll in them. Animals can't do so, as they dont have chlorophyll.

6 0
2 years ago
A 50 L cylinder is filled with argon gas to a pressure of 10130.0 kPa at 300°C. How many moles of argon gas does the cylinder co
KengaRu [80]
In this problem, we need to use the ideal gas law. The following is the formula used in ideal gas law: PV = nRT, where n refers to the moles and R is the gas constant.

Given 
P = 10130.0 kPa 
V = 50 L
T = 300 degree celcius + 273.15 = 573.15 K
R = 8.314 L. kPa/K.mol

Solution
To get the moles which represent the "n" in the formula, we need to rearrange the equation.

PV = nRT                      PV
----    ------    --->    n = --------
 RT     RT                       RT

          10130.0 kPa  x 50 L
n= ---------------------------------------------
       8.314 L. kPa/K.mol  x 573.15 K
             506,500 
  =  ----------------------------
         4,765.17  mol K

=106.29 mol Ar

So the moles of argon gas is 106.29 moles 
8 0
2 years ago
Read 2 more answers
Tectonic activity causes potential energy to build up in the crust. An earthquake occurs when this potential energy is released
4vir4ik [10]

Answer:

c. It generates changes in the magnetic field of Earth.

Explanation:

please mark this answer as brainlest

7 0
2 years ago
Read 2 more answers
Which element has properties most similar to Bromine? <br> A) F <br> B) Kr <br> C) S <br> D) Se
Stells [14]
Fluorine (F) will have properties similar to Bromine (Br) because it belongs to the same group as Bromine.
7 0
3 years ago
Read 2 more answers
JWhat type of evidence is gathering information through your senses or using scientific tools?
Ad libitum [116K]
Observations etc etc
8 0
2 years ago
Other questions:
  • For the reaction of gaseous nitrogen with gaseous hydrogen to produce gaseous ammonia, the correct equilibrium constant expressi
    9·1 answer
  • How do alchemy and chemistry differ?
    6·1 answer
  • What is the formula for aluminum sulfate?
    13·1 answer
  • How does your pattern of breathing change when you exercise and then rest ?​
    13·1 answer
  • Find the boiling point temperature at 760 torr of an isomer of octane, c8h18, if its enthalpy of vaporization is 38,210 j mol-1
    9·1 answer
  • 2) Motion can be described through a change in _____.
    12·2 answers
  • What is the function of nucleosomes ?
    9·2 answers
  • PLZ HELP! WILL GIVE BRAINLIEST, 5 STARS, AND A THANKS!!
    6·1 answer
  • Nuclear energy, energy is inside what
    5·1 answer
  • A compound that consists of atoms of nonmetals that are held together by covalent bonds are.
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!