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Fantom [35]
3 years ago
5

Pls i need this for finals and fast

Chemistry
1 answer:
topjm [15]3 years ago
8 0

Answer:C

Explanation: Because the oldest fossils are in deeper layers

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A solution is prepared by dissolving 0.23 mol of hypochlorous acid and 0.27 mol of sodium hypochlorite in water sufficient to yi
finlep [7]

Answer:

hypochlorite ion

Explanation:

The hypochlorous acid, HClO, is a weak acid with Ka = 1.36x10⁻³, when this acid is in solution with its conjugate base, ClO⁻ (From sodium hypochlorite, NaClO) a buffer is produced. When a strong acid as HCl is added, the reaction that occurs is:

HCl + ClO⁻ → HClO + Cl⁻.

Where more hypochlorous acid is produced.

That means, the HCl reacts with the hypochlorite ion present in solution

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3 years ago
To protect itself from herbivores, plants ______
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C.) both secrete toxins and have thorns (It simply depends on what kind of plant it is)
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For a phase change, H0 = 2 kJ/mol and A S0 = 0.017 kJ/(K•mol). What are
34kurt

Answer:

ΔG = -6.5kJ/mol at 500K

Explanation:

We can find ΔG of a reaction using ΔH, ΔS and absolute temperature with the equation:

ΔG = ΔH - TΔS

Computing the values in the problem:

ΔG = ?

ΔH = 2kJ/mol

T = 500K

And ΔS = 0.017kJ/(K•mol)

Replacing:

ΔG = 2kJ/mol - 500K*0.017kJ/(K•mol)

ΔG = 2kJ/mol - 8.5kJ/mol

<h3>ΔG = -6.5kJ/mol at 500K</h3>

8 0
3 years ago
What is the chemical formula for the most common fragment of formic acid?.
tekilochka [14]
CH2O2 formic acid I believe so
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Write a word equation for the overall reaction that occurred in the baggie. The reactants are sodium bicarbonate, carbon dioxide
Fynjy0 [20]

Answer:

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In a baggie, sodium bicarbonate is decomposed into sodium carbonate and carbondioxie and water is given off as gases:

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