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
olasank [31]
3 years ago
10

Which substance can be decomposed by a chemical change? (1) Co (3) Cr(2) CO (4) Cu

Chemistry
1 answer:
kotykmax [81]3 years ago
7 0
Answer: (2) CO

Co, Cr, and Cu are elements. Elements cannot be broken down by a chemical change, but compounds can. Since CO is a compound, it can be decomposed by a chemical change.
You might be interested in
How can we reduce the production of harmful gases that form acid rain
oksano4ka [1.4K]

Answer:

A great way to reduce acid rain is to produce energy without using fossil fuels. Instead, people can use renewable energy sources, such as solar and wind power. Renewable energy sources help reduce acid rain because they produce much less pollution.

7 0
3 years ago
In the following reaction, how many liters of o2 will produce 43.62 liters of co2 at stp? c3h8 5 o2 3 co2 4 h2o
antoniya [11.8K]
The balanced chemical reaction:

C3H8 + 5O2 = 3CO2 + 4H2O

We are given the amount of the carbon dioxide to be produced. This will be the starting point of our calculations.

<span>43.62 L CO2 ( 1 mol CO2 / 22.4 L CO2 ) (5 mol O2 / 3 mol CO2 ) ( 22.4 L O2 / 1 mol O2) = 72.7 L O2</span>



4 0
3 years ago
Read 2 more answers
C2H4(g) + H2(g) mc030-1.jpg C2H6(g) Which change would likely cause the greatest increase in the rate of the reaction?
Vinil7 [7]
The reaction is a hydrogenation reaction of an alkene, and its equation is:
C₂H₄(g) + H₂(g) → C₂H₆(g)
Therefore, this reaction can be sped up just as any other irreversible reaction may have its rate increased, by increasing temperature and pressure to increase the effective collisions of molecules.
5 0
3 years ago
Read 2 more answers
Substances which are easily vaporized are called (organic, inorganic, volatile).
Alla [95]
I believe the answer is volatile!
3 0
3 years ago
Read 2 more answers
Someone plz help me
marshall27 [118]

Answer:

B. 120 cm

Explanation:

The scale is 1 to 15, so when we are given the value of 8cm all you have to do it multiply 8 by 15 which leaves you with 120.

hope this helps!

7 0
3 years ago
Other questions:
  • The large diversity of biological molecules depends on atoms of the element __________. this element can make stable bonds to it
    13·1 answer
  • What element/compounds are used in the melting of ice?
    14·1 answer
  • How many milliliters of pure liquid methanol (ch3oh, mw = 32.04 g/mol) are needed to prepare 500.0 ml of an aqueous solution of
    14·1 answer
  • How is synthesis and replacement reactions related?
    5·1 answer
  • BRAINLIEST IF ANSWERED CORRECTLY WITH EXPLANATION! HELP PLEASE:)
    15·1 answer
  • Are there Muslims?<br> For Muslims
    8·2 answers
  • Write the products and balance the equation:<br><br> C4H7OH + O2 → CO2 +H2O
    5·1 answer
  • How TO DO THIS QUESTION PLEASE PLEASEEEEEEEEEeeeeeeeeeeeeeeeeeeee​
    9·1 answer
  • What must happen in order for atoms to bond either lonically or covalently with one another?
    13·1 answer
  • Please solve ...................................................................
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!