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fomenos
3 years ago
13

Rachel burns a 53 gram cracker under a soda can filled with 68.7 grams of water. She took the temperature of the water before sh

e began -- it was 5.5 degrees Celsius. After the cracker was done burning, the temperature of the water was 73.1 degrees Celsius. How many calories of heat were released by the cracker? Round your answer to one digit after the decimal point.
Chemistry
1 answer:
Jobisdone [24]3 years ago
8 0

Answer:

ion know

Explanation:

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We are given the rate law, so we can substitute the given values for the rate constant and the concentrations of the reactants to solve for the rate of reaction. Since rate = k [NH4+][NO2-]:
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By what factor will the rate of the reaction change if the ph decreases from 6.00 to 2.00? express your answer numerically using
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The reaction equation is first order with respect to [H+]

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So by substitution:

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and when PH2 = -㏒[H+]2 so, when PH2 = 2

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5 0
4 years ago
The wavelength of visible light varies from 380 nm to 750 nm as the color of the light changes from violet to red. Calculate the
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