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Elza [17]
3 years ago
7

Hanif thought that more heat energy has been given out in his reaction and noor thought that both reactions gave out same amount

of heat. Whose idea is correct and why?
Chemistry
1 answer:
Stells [14]3 years ago
6 0

Answer:

This question is incomplete but the missing part is in the document attached

Noor's idea is correct

Explanation:

Noor's idea is correct. This is because the temperature rise in the two experiments are the same and can be calculated as follow

Hanif's experiment: 45 - 21 = 24 °C

Noor's experiment: 42 - 18 = 24 °C

Thus, the correct idea is both reactions gave out same amount of heat

Download docx
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Write balanced, net ionic equations for the following precipitation, acidn base, or gasn forming reactions. Include states of ma
dybincka [34]

Answer:

Explanation:

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b  )

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c )

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d )

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e )

HNO₂ + KOH = KNO₂ + H₂O

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g )

c ) is strong acid and strong base

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5 0
3 years ago
Consider the reaction NOBr(g) => NO(g) + 1/2 Br2(g). A plot of 1/[NOBr] vs time give a straight line with a slope of 2.00 M-1
timama [110]

Answer:

Thus, the order of the reaction is 2.

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Explanation:

The kinetics of a reaction can be known graphically by plotting the concentration vs time experimental data on a sheet of graph.

The concentration vs time graph of zero order reactions is linear with negative slope.

The concentration vs time graph for a first order reactions is a exponential curve.  For first order kinetics the graph between the natural logarithm of the concentration vs time comes out to be a straight graph with negative slope.

The concentration vs time graph for a second order reaction is a hyberbolic curve. Also, for second order kinetics the graph between the reciprocal of the concentration vs time comes out to be a straight graph with positive slope.

Considering the question,

A plot of 1/[NOBr] vs time give a straight line with a slope of 2.00 M⁻¹s⁻¹.

<u>Thus, the order of the reaction is 2.</u>

<u>Also, slope is the rate constant of the graph which is :- 2.00 M⁻¹s⁻¹</u>

5 0
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