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3 years ago

10

After a product is released from its active site, a(n) ______ can be used again in another reaction because it is not consumed o

r altered in the reaction.

1 answer:

3241004551 [841]3 years ago

7 0

Answer:

Enzyme.

Explanation:

Enzymes act as a catalyst in all reaction but remain unchanged by the process.

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For the chemical equations shown below, label each reactant as either acid or base, and each product as either conjugate acid or

Veronika [31]

Acids are ionic compounds with hydrogen at the front. Bases are ionic compounds with hydroxide at three back(bronsted definition)
A conjugate acid is a base that has gained a proton(hydrogen ion) and a conjugate base is formed when an acid has given up its proton.

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3 years ago

1.<br> How<br> many atoms of Li are there in 7.5 moles of Li?

ZanzabumX [31]

Answer: 4.52x10²⁴ atoms Li

Explanation: For 1 mole of Li it is equal to the Avogadro's Number.

Solution:

7.5 moles Li x 6.022x10²³ atoms Li/ 1 mole Li

= 4.52x10²⁴ atoms Li

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3 years ago

Explain where you would find the three different types of muscles (cardiac, smooth and skeletal) and how these different types o

yawa3891 [41]

Explanation: Skeletal muscle, attached to bones, is responsible for skeletal movements. The peripheral portion of the central nervous system (CNS) controls the skeletal muscles. Thus, these muscles are under conscious, or voluntary, control. The basic unit is the muscle fiber with many nuclei. These muscle fibers are striated (having transverse streaks) and each acts independently of neighboring muscle fibers.

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3 years ago

A 25.0 ml solution of .0600 M EDTA was added to a 57.0 ml sample containing an unknown concentration of V3+. All V3+ present for

Rom4ik [11]

Explanation:

Let us assume that the ratio for the given reaction is 1:1.

Therefore, we will calculate the moles of $Ga^{3+}$ as follows.

Moles of $Ga^{3+}$ solution = molarity × volume (L)

= 0.0440 M × 0.014 L

= 0.000616 moles

Moles of excess EDTA = 0.000616 moles

Also, the initial moles of EDTA will be calculated as follows.

Total initial moles of EDTA = 0.0600 M × 0.025 L

= 0.0015

Therefore, moles of EDTA reacted with $V^{3+}$ will be as follows.

= 0.0015 - 0.000616

= 0.00088 moles

Since, we have supposed a 1 : 1 ratio between $V^{3+}$ and EDTA .

So, moles of $V^{3+}$ = 0.00088 moles

Now, we will calculate the molarity of $V^{3+}$ as follows.

Molarity of $V^{3+}$ solution = $\frac{\text{moles}}{\text{volume (L)}}$

= $\frac{0.00088 moles}{0.057 L}$

= 0.015 M

Thus, we can conclude that the original concentration of the $V^{3+}$ solution is 0.015 M.

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3 years ago

A chemical reaction that absorbs energy in the form of heat is described as

adell [148]

<span> endothermic is the answer

</span>

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3 years ago

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