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mojhsa [17]
3 years ago
6

Which of the following best describes the relationship between products and reactants in an exothermic reaction?

Chemistry
2 answers:
seropon [69]3 years ago
8 0
The best description for the relationship between the products and the reactants in an exothermic reaction is C. The potential energy of the products is less than the potential energy of the reactants.
alexgriva [62]3 years ago
4 0
I think the correct answer from the choices listed above is option C. The relationship between products and reactants in an exothermic reaction would be that <span> the potential energy of the products is less than the potential energy of the reactants. Hope this answers the question.</span>
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How is the formation of covalent bonds similar to kids sharing markers? how is it different? if possible, discuss your answer wi
vagabundo [1.1K]
A covalent bond means shared electrons between atoms. This is similar to kids sharing markers because the markers (electrons) are being shared between the kids (atoms). Covalent bonds are different than this metaphor because 1) the electrons are constantly moving about while the kids can steal and keep the markers and 2) the electrons and atoms are physically smaller
5 0
3 years ago
Read 2 more answers
5. At 20°C, the water autoionization constant, Kw, is 6.8 ´ 10–15. What is the H3O+ concentration in neutral water at this tempe
rjkz [21]

Explanation:

Let us assume that the concentration of [OH^{-} and H^{+} is equal to x. Then expression for K_{w} for the given reaction is as follows.

          K_{w} = [OH^{-}][H^{+}]

          K_{w} = x^{2}

      6.8 \times 10^{-15} = x^{2}

Now, we will take square root on both the sides as follows.

          \sqrt{6.8 \times 10^{-15}} = \sqrt{x^{2}}

          [H^{+}] = 8.2 \times 10^{-8} M

Thus, we can conclude that the H_{3}O^{+} concentration in neutral water at this temperature is 8.2 \times 10^{-8} M.

8 0
3 years ago
Read 2 more answers
How many moles are in 0.296 grams of gold?
Shalnov [3]
The answer is 196.96655.
6 0
3 years ago
You must make 1 L of 0.2 M acetic acid (CH3COOH). All you have available is concentrated glacial acetic acid (assay value, 98%;
Sergeu [11.5K]

Answer:

The correct answer is "11.44 ml".

Explanation:

Molarity,

= 0.2 M

Density,

= 1.05 g/ml

Volume,

= 1 L

As we know,

⇒  Molarity=\frac{No. \ of \ moles }{Volume \ of \ solution}

or,

⇒  No. \ of \ moles=Molarity\times Volume

On putting the values, we get

⇒                         =0.2\times 1

⇒                         =0.2 \ moles

Now,

⇒  No. \ of \ moles=\frac{Mass \ taken}{Molecular \ mass}

or,

⇒  Mass \ taken=No. \ of \ moles\times Molecular \ mass

⇒                      =0.2\times 60.05

⇒                      =12.01 \ gram

hence,

⇒  Density= \frac{Mass }{Volume}

or,

⇒  Volume=\frac{Mass}{Density}

⇒                =\frac{12.01}{1.05}

⇒                =11.44 \ ml

7 0
3 years ago
Why are polyatomic called radicals
Digiron [165]
That’s because when a charged chemical species composes of two or more atoms (covalently bonded), they act as a single unit. the term radicals refers to free radicals that are with an unpaired electron and because not all of its electrons are found in pairs
3 0
2 years ago
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