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Which of these is a valid conclusion based on the evidence of the above data? A)

ID: 1447980 • Letter: W

Question

Which of these is a valid conclusion based on the evidence of the above data?

A) Adding more of the chemical will always heat the water to a greater temperature.
B) The chemical always heats water to the same temperature.
C) The temperature of water is not affected by the amount of chemical
D) Adding more chmeical will heat the water but only up to a certain temperature.

Defend your answer using data found in the table

Trial Amount of Water Amount of Chemical Temperature of Water before Adding Chemical Temperature
of Water 2 minutes after Adding Chemical 1 100 ml 0 grams 21 degrees C 21
degrees C 2 100 ml 5 grams 21 degrees C 27
degrees C 3 100 ml 10 grams 21 degrees C 32
degrees C 4 100 ml 15 grams 21 degrees C 35
degrees C 5 100 ml 20 grams 21 degrees C 35
degrees C

Explanation / Answer

the valid conclusion is

D) Adding more chmeical will heat the water but only up to a certain temperature

from the table first 3 values shows that as amount of chemical increases temperature also increases

but above 15 grams the temperature is constant

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