Less than that of nitrogen and oxygen remember cnof "see noff" . this is the order of electronegativity carbon is less than nitrogen which is less than oxygen which is less than fluorine.
Measure the soil's volume then the volume of water that the soil can absorb the water.
Answer:
b) The dehydrated sample absorbed moisture after heating
Explanation:
a) Strong initial heating caused some of the hydrate sample to splatter out.
This will result in a higher percent of water than the real one, because you assume in the calculation that the splattered sample was only water (which in not true).
b) The dehydrated sample absorbed moisture after heating.
Usually inorganic salts may absorbed moisture from the atmosphere so this will explain the 13% difference between calculated water percent the real content of water in the hydrate.
c) The amount of the hydrate sample used was too small.
It will create some errors but they do not create a difference of 13% difference as stated in the problem.
d) The crucible was not heated to constant mass before use.
Here the error is small.
e) Excess heating caused the dehydrated sample to decompose.
Usually the inorganic compounds are stable in the temperature range of this kind of experiments. If you have an organic compound which retain water molecules you may decompose the sample forming volatile compounds which will leave crucible so the error will be quite high.
Based on the specific heat capacities of the given substances, if samples of the same mass are heated on a hot plate using the same amount of energy, <u>copper</u> will reach 50 degrees first. The correct option is B.
<h3>What is the specific heat capacity of a substance?</h3>
The specific heat capacity of a substance is the amount of heat required to raise a unit mass of that substance by one-degree celsius.
The higher the value of the specific heat capacity of a substance, the greater the amount of heat required to raise the temperature of that substance by a unit degree.
Comparing the specific heat capacities of the given substances:
Water has the highest specific heat capacity whereas mercury has the lowest heat capacity.
Hence, mercury will require the least amount of heat for its temperature to increase.
Learn more about specific heat capacity at: brainly.com/question/28938432
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