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andriy [413]
2 years ago
8

What does O - H.....O - H represent?

Chemistry
2 answers:
Anon25 [30]2 years ago
7 0

Answer:

a.  Hydrogen bond.

Explanation:

There is an attraction between the Hydrogen in one molecule with the oxygen in another molecule.  This occurs in water.

yawa3891 [41]2 years ago
6 0

Answer:

C)

Explanation:

It's a covalent bond because O and H are both non metals.

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811.68 J of energy are used on a 95g chunk of unknown metal. Calculate the resulting temperature change if the specific heat of
Ivan

Answer:

16 °C

Explanation:

Step 1: Given data

  • Provided heat (Q): 811.68 J
  • Mass of the metal (m): 95 g
  • Specific heat capacity of the metal (c): 0.534 J/g.°C

Step 2: Calculate the temperature change (ΔT) experienced by the metal

We will use the following expression.

Q = c × m × ΔT

ΔT = Q/c × m

ΔT = 811.68 J/(0.534 J/g.°C) × 95 g = 16 °C

6 0
3 years ago
If the pressure changes from 1 atm to 3 atm, what does the volume of 30 L change to
DiKsa [7]

Answer: 10L

Explanation:

Given that:

Initial pressure P1 = 1 atm

New pressure P2 = 3 atm

Initial volume V2 = 30 L

New volume V2 = ?

Since pressure and volume are involved, apply the formula for Boyle's law

P1V1 = P2V2

1 atm x 30L = 3 atm x V2

30 atm L = 3 atm x V2

V2 = (30 atm L / 3 atm)

V2 = 10L

Thus, volume changed to 10 liters

5 0
3 years ago
Nuclear fission is the splitting of atomic nuclei, while nuclear fusion is the combining of atomic nuclei.
Simora [160]
Nuclear reactions are those that involve the nucleus of an atom. Nuclear fission involves the splitting of an atomic nucleus and the formation of two distinct atomic species. Nuclear fusion is indeed the combining of two atomic nuclei in order to form a single atomic species. Therefore the answer to the question is true. 
4 0
3 years ago
Read 2 more answers
At a molecular level describe the differences between a hot object and a cold object​
Inessa [10]

Answer:

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Explanation:

The hot object are those which have high energy atoms that moves with a very fast energy whereas the cold object are those which have low energy atoms and moves with low speed.

5 0
3 years ago
A large molecule made up of smaller molecules called amino acids
Leni [432]

Answer:

Protein

Explanation:

3 0
3 years ago
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