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3 years ago

Which of the following molecules can form hydrogen bonds? Group of answer choices NH3 NaH HI BH3 CH4

Chemistry

1 answer:

Len [333]3 years ago

8 0

Answer:

NH₃

Explanation:

The hydrogen bond is a specially strong type of dipole-dipole interaction. For a hydrogen bond to occur, a molecule must have a hydrogen atom and a very electronegative atom, such as nitrogen, oxygen or fluorine. The hydrogen atom has a positive charge density while the heteroatom has a negative charge density.

<em>Which of the following molecules can form hydrogen bonds? </em>

NH₃ YES

NaH NO

HI NO

BH₃ NO

CH₄ NO

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Noble Gases (18): (Name all noble gases)

Paul [167]

Answer :

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3 years ago

Calculate the mass of sodium phosphate in aqueous solution to fully react with 37 g of chromium nitrate(III) an aqueous solution

Alla [95]

Answer:

41 g

Explanation:

The equation of the reaction is;

Cr(NO3)3(aq)+Na3PO4(aq)=3NaNO3(s)+CrPO4(aq)

Number of moles of chromium nitrate = 37g/ 146.97 g/mol = 0.25 moles

1 mole of sodium phosphate reacts with 1 mole of chromium nitrate

x moles of sodium phosphate react as with 0.25 moles of chromium nitrate

x= 1 × 0.25/1

x= 0.25 moles

Mass of sodium phosphate = 0.25 moles × 163.94 g/mol

Mass of sodium phosphate = 41 g

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3 years ago

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Phoenix [80]

Answer: 6 & 8

Explanation:

I got it correct on my test hope this helped

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Create a model of the atoms of a substance moving through the solid, liquid, and gas states.

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2 years ago

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avanturin [10]

Answer:

The situation given here is imaginary such that the life of Rock has to be found using the half-life of the element lokium that has been found inside the rock.

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The time elapsed will be log (L) atoms X half-life.

Explanation:

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2 years ago