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anyanavicka [17]
3 years ago
12

How does a combination reaction differ from a decomposition reaction

Chemistry
1 answer:
OverLord2011 [107]3 years ago
5 0

Answer:

Explanation:

Combination Reaction: is a reaction that occurs when two or more reactants combine to form a single new products. The reactants can either be Elements or Compounds. It does not require heat during the reaction.

A + B ---------> C

C (s) + O2 (g) ----------> CO2 (g)

CaO (s) + H2O (l) ---------> Ca(OH)2 (s)

In this reaction, energy is released.

Decomposition Reaction: is a reaction that occurs when a a single reactant is broken down to form two or more products. Application of heat is usually required in this type of reaction.

       Δ

AB --------->   C + D

                   Δ

CaCO3 (s) --------> CaO (s)  + CO2 (g)

In this reaction, energy is absorbed.

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The calvin cycle and the krebs are referred to as cycles of chemical reactions because they
Schach [20]

Answer:

The options are

a. occur inside organelles. b. start over continually. c. are part of the carbon cycle. d. allow energy to flow in ecosystems.

The answer is b. Start over continually

Explanation:

The two cycles involves a continuous process as long as the reactants are present under suitable conditions. The cycle happens all the time due to it being necessary to produce important products all the time for the body system.

A good example involves the existing Carbon dioxide and water reacting together to get converted into substance that could provide energy (ATP and NADH) such as Glucose.

8 0
3 years ago
How does the concentration of the substrate in an enzyme-controlled chemical reaction change over time?
Zinaida [17]

Answer:

The rate of a chemical reaction is directly proportional to the concentration. The rate of a chemical reaction increases as the substrate concentration increases and thus, concentration of the substrate in an enzyme-controlled chemical reaction increases with time.

Explanation:

The rate of a chemical reaction is directly proportional to the concentration.

The reaction rate increases with increasing substrate concentration, but levels off at a much lower rate. By increasing the enzyme concentration, the maximum reaction rate greatly increases.

Generally, the rate of a chemical reaction increases as the substrate concentration increases, and thus, concentration of the substrate in an enzyme-controlled chemical reaction increases with time.

5 0
3 years ago
Read 2 more answers
The average blood volume in the human body is about 4.9 L. Convert this volume to cubic centimeters (cm3).a. milliliters (mL)b.
CaHeK987 [17]

Answer:

a. 4900 mL; b. 4900 cm³ c. 4.9x10⁻³  m³

Explanation:

1 L = 1 dm³

4.9 L = 4.9 dm³

1 dm³ = 1000 cm³  → 4900 cm³

1 cm³ = 1 mL  (4900 mL)

1 dm³ = 1x10⁻³ m³ → 4.9x10⁻³  m³

6 0
3 years ago
the mass number of a chronium atom is 52 and it has 24 protons. how many neutrons does this atom have?
arlik [135]
Hello,

The answer is "28 neutrons".

Reason:

The element Chromium has:

Protons:24
Neutrons:28
Electrons:24

If you need anymore help feel free to ask me!

Hope this helps!

~Nonportrit 


4 0
3 years ago
What is the charge of an electron
Afina-wow [57]
The charge of an electron is 4.80320451 × 10<span>^−10 .</span>
7 0
3 years ago
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