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How did the effect of freezing the sample differ from the effect of boiling?
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What effect does the amount of the sample of a substance affect its density?
it has no effect. density of a substance is the same no matter the size or shape of the sample.
Would there be a difference in the boiling point temperature of water between a cup of water and a bathtub of water?
No. Boiling point is an intensive physical property, which means it does not matter how large the sample is.
What is a charateristic poperty?
A characteristic property is a chemical or physical property that helps identify and classify substances. The characteristic properties of a substance are always the same whether the sample you are observing is large or small. Examples of characteristic properties include freezing/melting point, boiling/condensing point, density, magnetism, and solubility.
When a liquid sample is taken from sea level to a higher elevation what happens to the external pressure on the liquid and the boiling point of the liquid?
atmospheric pressure is lower and the boiling point is less
What is the simple physical test to show that a sample of water is pure?
A scientific test you do on water similar to a chemical test
How are boiling and freezing points of a sample of water affected when salt is dissolved in the water?
the freezing and boiling points rise significantly- this is why when you boil water in a saucepan, like for pasta, it is advised that you put salt in the water so that the water boils at a higher temperature, thus allowing you to heat the water to a higher temperature. hope this helps
Why wont a sample statistics change from sample to sample?
The sample mean may differ from the population mean, especially for small samples.
Why do most sample means differ somewhat from the population mean?
The sample is not a perfect representation of the population.
How do a control sample and an experimental sample differ from each other?
A control sample is the experiment under regular conditions. An experimental sample is the experiment in which different variables are changed.
What effect does the amount of the sample of a substance affect its density?
it has no effect. density of a substance is the same no matter the size or shape of the sample.
What physical properties of the sample is most helpful to determine if the liquid is water color mass volume boiling point?
boiling point. (The Boiling point of water is 100 oC.)
Can The mean and standard deviation change?
They will differ from one sample to another.
How do you decide whether a colourless liquid is pure water by boiling?
By boiling the substance, you can compare the actual boiling point of water in given conditions to that of the sample. However, analogues can be made which will have an identical boiling point, yet contain little or no water at all. Hence, boiling alone cannot ascertain what something is. This holds for all physical tests - you must use chemical tests as well to determine exactly what composes a sample.
As the sample size increases the effect of an extreme value on the sample mean becomes smaller.?
yes
What is the name of the test tube that measures?
A sample tube, culture tube, sometimes a boiling tube.
The boiling point of pure water is?
The boiling point of pure water is typically about 100 degrees Celsius. This value can vary based on factors such as pressure. Additionally, impurities in a sample of water can alter its boiling point.
How does sample size effect the test statistic?
The larger the sample size, the more accurate the test results.
