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abruzzese [7]
4 years ago
8

What is the definition of a lewis base?

Chemistry
2 answers:
brilliants [131]4 years ago
5 0
A lewis base is a compound or ionic species that can donate an electron pair to an acceptor compound. I hope this helps love! <3
enyata [817]4 years ago
5 0

B. A substance that donates electron to form a covalent bond

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What volume of hydrogen gas is required to react with 113 liters of ethylene (C2H4) according to the following reaction? (All ga
AysviL [449]

<u>Answer:</u> The volume of hydrogen gas required for the given amount of ethylene gas is 113 L

<u>Explanation:</u>

At STP:

1 mole of a gas occupies 22.4 L of volume

We are given:

Volume of ethylene = 113 L

For the given chemical equation:

H_2(g)+C_2H_4(g)\rightarrow C_2H_6(g)

By Stoichiometry of the reaction:

(1\times 22.4)L of ethylene reacts with (1\times 22.4)L of hydrogen gas

So, 113 L of ethylene gas will react with = \frac{(1\times 22.4)}{(1\times 22.4)}\times 113=113L of hydrogen gas

Hence, the volume of hydrogen gas required for the given amount of ethylene gas is 113 L

5 0
3 years ago
Explain why the ability of PLP to catalyze an amino acid transformation is greatly reduced if the OHOH substituent of pyridoxal
cupoosta [38]

Answer:

Following are the responses to the given question:

Explanation:

In the given question the OH could be generated as the H-bond with both the N (nitrogen), which is used to place its N as the partially positive value(+). It is used to simplifies the addition for either its  AA with the imine C. In the above H-bond, the w N is not required as the possibility to use the OCH3

7 0
3 years ago
What is the pH of a solution of 0.600 M K2HPO4, potassium hydrogen phosphate?
AleksAgata [21]
<span>When pKas of polyprotic intermediates have a difference of 2 or more you just average them using the equation: pH = (pKa2 + pKa3) / 2  </span>
<span>pKa2 = -log(Ka2) ; pKa3 = -log(Ka3) </span>
<span>so, for this problem, REGARDLESS OF THE CONCENTRATION GIVEN, the answer is:  </span>
<span>pH = (7.2076+12.3767) / 2  </span>
<span>pH = 9.79</span>
5 0
4 years ago
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Which of the following is TRUE about when two atoms form a bond? a. Repulsion is greater than attraction b. Neither atoms will h
mixer [17]

Answer:

b:   Neither atoms will have a full valence shell

Explanation:

I think sooo

8 0
3 years ago
Calculate the Cal(kcal) in 1 cup of whole milk: 12 g of carbohydrate, 9 g of fat, and 9 g of protein.
laiz [17]
 Fat: 1 gram = 9 calories    Protein: 1 gram = 4 calories    Carbohydrates: 1 gram = 4 calories    Alcohol: 1 gram = 7 calories"
So, (12 g carbohydrates)*4 Cal=48 Cal; (9 g fat) *9 Cal=81 Cal; (9 g protein)*4 Cal=36 Cal
48 Cal + 81 Cal + 36 Cal = 165 Cal in one glass of milk
5 0
4 years ago
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