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julia-pushkina [17]
3 years ago
8

Which statement about enzymes is true?

Chemistry
1 answer:
-BARSIC- [3]3 years ago
8 0
They are large enzymes that increase the rate of  biologically important reactions, as they catalyze many biological reactions.
Hope this helps!

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Which of the following is an oxidation-reduction reaction?
Hatshy [7]

B. The chemical reaction that represents oxidation - reduction reaction is CaCO3(s) → CaO(s) + CO2(g).

<h3>Oxidation reduction reaction</h3>

In oxidation reduction reaction, the oxidizing agent is reduced while reducing agent is oxidized.

<h3>In the chemical equation below;</h3>

CaCO3(s) → CaO(s) + CO2(g)

Calcium (ca) is oxidized calcium (II) ion while the carbon (IV) oxide is reduced carbon (IV) oxide.

Thus, the chemical reaction that represents oxidation - reduction reaction is CaCO3(s) → CaO(s) + CO2(g).

Learn more about oxidation reduction reaction here: brainly.com/question/4222605

#SPJ1

8 0
2 years ago
Compare natural selection to evolution. Be sure to justify your response in two or more complete sentences in the essay
Wittaler [7]

Answer:

Natural selection is a process in which organisms are fit to adapt and live in the environment. Natural selection was an idea developed by Charles Darwin, Darwin contributed this idea when he was studying birds and tortoises at the Galapagos Islands. He then wrote his famous book, <em><u>O</u></em><em><u>r</u></em><em><u>i</u></em><em><u>g</u></em><em><u>i</u></em><em><u>n</u></em><em><u> </u></em><em><u>o</u></em><em><u>f</u></em><em><u> </u></em><em><u>S</u></em><em><u>p</u></em><em><u>e</u></em><em><u>c</u></em><em><u>i</u></em><em><u>e</u></em><em><u>s</u></em><em><u>.</u></em> Evolution is also very similar, evolution is a process in which organisms reproduce and mutate in order to survive and adapt. As you can see, natural selection and evolution are alike in many ways.

☆anvipatel77☆

•Expert•

Brainly Community Contributor

5 0
2 years ago
What is kinetic energy?
Natali5045456 [20]

Answer:

<h3>D energy of motion</h3>

Explanation:

Kinetic energy is the energy present in mass in motion

3 0
3 years ago
Suppose you wanted to know how many grams of KCl would be left if 350mL of
strojnjashka [21]

Answer:

52.2g of KCl would be left

The mass of KCl will remain despite the solution is been heated

Explanation:

When you are heating a solution, just the solvent (In this case, water), will be evaporated and, in theory, the mass of KCl will remain despite the solution is been heated.

Now, the mass of KCl that you can obtain from 350mL of a 2.0M solution will be:

<em>Moles KCl:</em>

350mL = 0.350L * (2.0mol / L) = 0.700 moles

<em>Mass KCl -Molar mass: 74.55g/mol-:</em>

0.700mol * (74.55g/mol) = 52.2g of KCl would be left

8 0
2 years ago
An aqueous solution of __________ will produce a basic solution. nacl nh4clo4 na2so3 kbr nahso4
scoundrel [369]
I think the correct answer would be NH4ClO4. It would produce a basic solution since as it dissociates into ions OH ions are being formed as the concentration of this increases, the pH of the solution would increase as well making it basic. Hope this helps.
5 0
3 years ago
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