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
Contact [7]
3 years ago
12

Matter can not be created nor destroyed: it can only be

Chemistry
2 answers:
Aleonysh [2.5K]3 years ago
5 0

Answer:

C- transforemed or changed

Explanation:

matter can be changed by application of heat or cold

Arada [10]3 years ago
3 0

Answer:

D) None of the above

Explanation:

You might be interested in
How are t cells and b cells same
tigry1 [53]
T cells and B cells are similar because they both deal with fighting of viruses.
5 0
4 years ago
Read 2 more answers
Enthalpy change depends on the rate at which a substance is heated or cooled true or false
Dahasolnce [82]
Enthalpy is a thermodynamic quantity that describes the heat content of a system, that can not be measured directly. That's why we measure change in enthaply, measured in the units joules. The statement that e<span>nthalpy change depends on the rate at which a substance is heated or cooled is false. Enthalpy change depends only on the following factors:
-</span><span>physical state of reactants and products
- quantity of reactants</span><span>
- allotropic modifications
- temperature and pressure</span><span>
</span>
6 0
3 years ago
When elemental boron, B, is burned in oxygen gas, the product is diboron trioxide. If the diboron trioxide is then reacted with
zalisa [80]

<u>Answer:</u> The chemical equation is written below.

<u>Explanation:</u>

Every balanced chemical equation follows law of conservation of mass.

This law states that mass can neither be created nor be destroyed but it can only be transformed from one form to another form. This also means that total number of individual atoms on reactant side must be equal to the total number of individual atoms on the product side.  

The chemical equation for the reaction of elemental boron and oxygen gas follows:

4B+3O_2\rightarrow 2B_2O_3

By Stoichiometry of the reaction:

4 moles of elemental boron reacts with 3 moles of oxygen gas to produce 2 moles of diboron trioxide.

The chemical equation for the reaction of diboron trioxide and water follows:

B_2O_3+3H_2O\rightarrow 2H_3BO_3

By Stoichiometry of the reaction:

1 mole of diboron trixoide reacts with 3 moles of water to produce 2 moles of boric acid.

Hence, the chemical equations are written above.

3 0
3 years ago
Most organic compounds contain carbon and _____. most organic compounds contain carbon and _____. phosphate nitrogen oxygen hydr
bulgar [2K]
This question can be easily confused with. During the early times, organic compound are directly associated with living beings, people, plants and animals. That is somewhat true. The definition of organic compounds are compounds that contain carbon. So, it is true that most of the compounds in our body are organic. But you may confuse it to the abundance of elements in the body, which is oxygen. However, the most abundant element, besides carbon, in organic compounds is Hydrogen. You will notice this obviously in the organic compounds like alkanes, alkenes, alkynes, carbohydrates, lipids, hormones and proteins. Their general chemical formula usually involves Carbon and Hydrogen.
4 0
4 years ago
Read 2 more answers
What type of reactions are referred to as electron transfer reactions? g?
Alexxandr [17]
Chemical reactions are known as electron transfer reaction.
5 0
3 years ago
Other questions:
  • Which of the following statements is not correct?
    12·1 answer
  • What particle(s) of an atom would NOT found in the nucleus?
    8·1 answer
  • What adaptation might help a plant survive in an environment with cold winters?
    13·2 answers
  • Compare the distance between the molecules of a gas in a very small container with the distance between the molecules of the sam
    11·1 answer
  • How many protons and electrons are present in a vanadium atom
    8·2 answers
  • Please choose the correct number (associated with the vocab word) from the drop down menu that matches the definition
    10·1 answer
  • Who first established the heliocentric view
    5·1 answer
  • Write and balance the following equation:
    13·1 answer
  • When of a certain molecular compound X are dissolved in of dibenzyl ether , the freezing point of the solution is measured to be
    13·1 answer
  • Which of the following is an adaptation that helps protect the animal?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!