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Monica [59]
3 years ago
5

Select the keyword or phrase that will best complete each sentence

Chemistry
1 answer:
Reil [10]3 years ago
6 0

Answer:

Acetylide,Enol, Aldehyde, Tautomers,Alkynes,Hydroboration,Keto.

Explanation:

<u>Acetylide</u> anions are strong nucleophiles that open epoxide rings by an SN2 mechanism.

<u>Enol </u>tautomers have an O-H group bonded to a C=C.

<u>Aldehyde</u> are formed from terminal alkynes with the addition of water using BH3 then H2O2.

<u>Tautomers</u> are constitutional isomers that differ in the location of a double bond and a hydrogen and exist in an equilibrium with each other.

<u>Alkynes</u> are compounds that contain a carbon-carbon triple bond.

<u>Hydroboration</u> of a terminal alkyne adds BH₂ to the less substituted, terminal carbon.

<u>Keto</u> tautomers have a C=O and an additional C-H bond.

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Answer: A) 3.21 g

Explanation:

According to the law of conservation of mass, mass can neither be created nor be destroyed. Thus the mass of products has to be equal to the mass of reactants. The number of atoms of each element has to be same on reactant and product side.

Fe+S\rightarrow FeS

We are given:

Mass of iron = 5.58 g

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Total mass on reactant side = 5.58 + x

Total mass on product side = 8.79 g

Applying law of conservation of mass, we get:

5.58+x=8.79\\\\x=3.21g

Hence, the mass of reacting sulfur is 3.21 g.

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3 years ago
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Weight in grams of NaCl
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