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Olin [163]
3 years ago
11

If two atoms are bonded with a bond energy of 87 kJ, what must be done to break the bond?

Chemistry
1 answer:
SSSSS [86.1K]3 years ago
7 0
I would say the energy has to be decreased by 87 kj because the bonding is held together by 87 kj so removing that should prevent the bonding from taking place or reverse it I believe. In other words, a certain amount of energy is required to hold the bond together and in the absence of that energy, the bonding will not take place.
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For each system listed in the first column of the table below, decide (if possible) whether the change described in the second c
cricket20 [7]

Answer:

For each system listed in first column of the table below, decide (if possible) whether the change described in the second column will increase the entropy S of the system, decrease S , or leave S unchanged. If you don?t have enough information to decide, check the not enough information button in the last column

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3 years ago
If the density of pure water is 0.9922 g/mL at 40 ºC, calculate its theoretical molarity at that temperature. Report to 4 sig fi
OleMash [197]
Answer is: theoretical molarity of water is 55.1222 mol/L.<span>
d(H</span>₂O) = 0.9922 g/mL.
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3 0
3 years ago
Identify the variables in the investigation: An investigation was done with an electromagnetic system made from a battery and wi
kondaur [170]

Answer:

Independent: sizes of nails

Dependent: number of paper clips

Controlled: Battery, wire and type of nails

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An independent variable is a variable which when changes does not the effect the results of the experiment. It does not depends upon the dependent variable.

A dependent variable is defined as a variable which is affected when the independent variable is changed by the researcher or the experimenter. It depends greatly upon the independent variable.

While a controlled variable is that variable whose value is not changed in an experiment. It contains all the constants.

In the context,

the independent variable are : sizes of nails

the dependent variables are : number of paper clips

the Controlled variables are: Battery, wire and type of nails

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Answer:

The correct answer is (b)

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3 years ago
_________ rock's form when hot, molten rock cools and becomes a solid
zavuch27 [327]
The answer to fill in the blank is (igneous)

I hope I helped.
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3 years ago
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