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asambeis [7]
3 years ago
8

If you stirred some sugar in hydrochloric acid there would be a violent chemical reaction. This is because -

Chemistry
1 answer:
atroni [7]3 years ago
8 0

The answer is A. sugar and hydrochloric acid have chemical properties that permit the reaction. i just did the chapter test and got it right.

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Which factor is included in the ideal gas law that isn't present in the others?
rodikova [14]

Number of moles

Explanation:

From the general formula of ideal gas equation it is seen that number of moles is present and absent in other gas equations

3 0
3 years ago
Witch one is bigger 25yd or 75ft
Aleonysh [2.5K]

Answer: in 25 yards there is 75 feet. Witch is the same to say that 25 yards is 75 feet.

Explanation:

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The activation energy for a reaction is changed from 184 kJ/mol to 59.0 kJ/mol at 600. K by the introduction of a catalyst. If t
slega [8]

Answer:

The catalyzed reaction will take time of 5.11\times 10^{-8} years.

Explanation:

According to the Arrhenius equation,

K=A\times e^{\frac{-Ea}{RT}}

The expression used with catalyst and without catalyst is,

\frac{K_2}{K_1}=\frac{A\times e^{\frac{-Ea_2}{RT}}}{A\times e^{\frac{-Ea_1}{RT}}}

\frac{K_2}{K_1}=e^{\frac{Ea_1-Ea_2}{RT}}

where,

K_2 = rate of reaction with catalyst

K_1 = rate of reaction without catalyst

Ea_2 = activation energy with catalyst  = 59.0 kJ/mol = 59000 J/mol

Ea_1 = activation energy without catalyst  = 184 kJ/mol = 184000 J/mol

R = gas constant

T = temperature = 600K

Now put all the given values in this formula, we get:

\frac{K_2}{K_1}=e^{\frac{184,000 kJ-59000 kJ}{R\times 300}}=7.632\times 10^{10}

The reaction enhances by 7.632\times 10^{10}  when catalyst is present.

Time taken by reaction without catalyzed = 3900 years

Time taken by reaction with catalyzed = x

x=\frac{3900 year}{7.632\times 10^{10}}=5.11\times 10^{-8} years

The catalyzed reaction will take time of 5.11\times 10^{-8} years.

8 0
3 years ago
Pls Help! <br>No links Please!<br>I also want an explanation <br>I will give brainliest​
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Answer:

uhhhhh not sure i cant see it

Explanation:

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What is the percent of H in NH3
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\frac{h3}{nh3}

\frac{1.008 \times 3}{(14.01) + (1.008 \times 3)}  \times 100\% =
ok, now press calculator. i dont have it now.
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3 years ago
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