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Elena-2011 [213]
3 years ago
13

Which of the following is an example of a Lewis acid?

Chemistry
1 answer:
Agata [3.3K]3 years ago
4 0

Answer:

C. BF3

Explanation:

The boron in BF3 is electron poor and has an empty orbital, so it can accept a pair of electrons, making it a Lewis acid.

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8. Adding up all of the of all of the individual atoms within one molecule of a compound will determine the
Aleonysh [2.5K]

Answer:

Option A = atomic masses

Explanation:

In compound molecular mass is the sum of the individual atomic masses of the atoms.

For example

Compound NaCl.

atomic weight of sodium = 23 g/mol

atomic weight of chlorine = 35.5 g/mol

Molar mass of NaCl = 23+ 35.5 = 58.5 g/mol

Every atom consist of nucleus or a positive center. The protons and neutrons are present with in the nucleus while electrons are present out side the nucleus. All these three subatomic particles construct an atom. The number of protons or number of electrons are the atomic number of an atom while the number of protons and number of neutrons are the mass number of an atom. A neutral atom have equal number of protons and electrons. In other words we can say that negative and positive charges are equal in magnitude and cancel the each other.

4 0
3 years ago
If you have 8.56 g of H2, how many grams of NH3 can be produced?
Lyrx [107]
 <span>N2 + 3H2 → 2 </span>NH3<span> from bal. rxn., 2 moles of </span>NH3<span> are formed per 3 moles of </span>H2, 2:3 moleH2<span>: 3.64 </span>g<span>/ 2 </span>g<span>/mole </span>H2<span>= 1.82 1.82 moles </span>H2<span> x 2/3 x 17 

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3 years ago
Fireworks contain metals that are brightly colored when burned. They are less reactive than some other metals. Which metal is on
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The correct answer is C. Mg (Magnesium)
7 0
3 years ago
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Approximately how many elements are there that combine chemically in a great number of ways to produce compounds? A. 25 B. 50 C
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100 as there’s approximately 100 discovered elements
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A pH scale runs from 1 to 14 with 7 being neutral.

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since this solution has a pH scale of 4.... the solution is basic
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2 years ago
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