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Predict how the volume of a 50 mL sample of melted wax will change as it cools down and solidifies?
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What metal ion would you predict to be contained in sample of unknown 1?
Strontium and copper nitrate
Do characteristic properties change when sample changes?
No they do not change
Why is the melting point of a sample which has been previously melted different from the melting point of the original sample?
It depends on the elements in the molecules which make up the object, & how strongly those elements are bonded together.
What happens to a fixed sample of gas when its temperature changes?
If a fixed sample of gas has a change of temperature pressure would increase.
How do you Measuring Morphological Rates?
Continuous sample = Slope of curve of change
Predict the change in viscosity as heat is added to or removed from a sample of oil?
think of it as this viscosity is thick when it is heated what will happen
Will Random sample always accurately predict the outcomes of an entire population?
No. Only a census can ACCURATELY predict the outcomes: a random sample cannot.
Why should melting point tests never be repeated on the same sample?
Once a sample has been melted, it may have decomposed slightly. Contamination with a decomposed product will change the MP of the sample, so a fresh sample must always be used for each new test.
What is the point of the range?
The difference between the temperature at which the sample begins to melt and at the temperature at which the sample completely melted-
This is part of a population selected to predict information about the population as a whole?
sample
What metal ion would you predict to be contained in sample of unknown 1?
Strontium and copper nitrate
Newspaper mail-in ballots hope to predict election outcomes with some success by hearing from?
A Representative sample of the population
Newspaper mail-in ballots hope to predict election outcomes with some success by hearing from .?
A Representative sample of the population
Why wont a sample statistics change from sample to sample?
The sample mean may differ from the population mean, especially for small samples.
Do characteristic properties change when sample changes?
No they do not change
What happens to the distribution of the sample means if the sample size is increased?
the means does not change
Sample letter informing change in designation?
A sample letter informing a change in designation can be found in many templates online. The sample letter will explain the job change and be formally address to the current supervisor and the new supervisor.
