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exis [7]
2 years ago
15

Which of the following statements explain what is currently known about Earth’s oceans? Select all that apply.

Chemistry
2 answers:
Juliette [100K]2 years ago
8 0
I think all of them are accurate, you can also search each one of them on the internet
ArbitrLikvidat [17]2 years ago
5 0

Answer:

Explanation:

Green is the correct.

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Gaseous hydrogen iodide is placed in a closed container at 425∘C, where it partially decomposes to hydrogen and iodine: 2HI(g)⇌H
murzikaleks [220]

Answer:

0.0184

Explanation:

Let's consider the following reaction at equilibrium.

2 HI(g) ⇌ H₂(g) + I₂(g)

The concentration equilibrium constant (Kc) is equal to the product of the concentration of the products raised to their  stoichiometric coefficients divided by the product of the concentration of the reactants raised to their  stoichiometric coefficients.

Kc = [H₂] × [I₂] / [HI]²

Kc = (4.78 × 10⁻⁴) × (4.78 × 10⁻⁴) / (3.52 × 10⁻³)²

Kc = 0.0184

5 0
3 years ago
Nitrogen and hydrogen react to produce ammonia.
Doss [256]

Answer:

yep yep yep yep yep yep yep yep yep yep so cool yep

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6 0
3 years ago
The decay of which radioisotope can be used to estimate the age of the fossilized remains of an insect?
Dmitriy789 [7]
(4) C-14 Carbon is found in all living organisms.
3 0
3 years ago
Read 2 more answers
Which of the following statements is true when considering temperature during a recrystallization? More than one answer may be c
Otrada [13]

Answer:

The correct answer is:

<em>(1) It is important that the sample is dissolved in just enough hot solvent. </em>

Explanation:

The process of recrystallization is important to eliminate the impurities and to obtain better crystals of the solid. The solvent used to perform the recrystallization must have a high dissolution power of the substance to be recrystallized and a low dissolution power of the impurities. This is in order to eliminate most impurities. Furthermore, <em>It is important that the sample is dissolved in just enough hot solvent </em>because this should be easy to remove after the recrystallization and the crystal should form easily when the solution cools. Also, it is better to add the hot solvent to solubilize the crystals and keep the impurities insoluble, instead of adding the cold solvent and heating the solution. Additionally, the process of cooling the solution must be done slowly to obtain large and fewer crystals. A fast ice-cooling will form smaller crystals.

4 0
3 years ago
The genetic material of all organisms;made up of two twisted strands in a double helix
viva [34]
Hello!

The genetic material of all organisms which is made up of two twisted strands in a double helix is called DNA (DeoxyriboNucleic Acid)

DNA 
is the basis of all genetic information. It contains all instructions for the development and functioning of all living organisms and some viruses. The main function of DNA is the long-term storage of information to build other cell components like Proteins and RNA. It is composed of two strands with 4 possible bases which are Adenine (A), Thymine (T), Cytosine (C) and Guanine (G).

Have a nice day!
7 0
3 years ago
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