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A good sample is representative of the population from which it is drawn, ensuring that it reflects the diversity and characteristics of that population. It should be of adequate size to provide reliable results and minimize sampling error. Additionally, the sample should be selected using appropriate methods to avoid bias, ensuring that every member of the population has an equal chance of being included. Finally, good samples should be relevant to the research question, providing meaningful insights into the topic being studied.
What else can I help you with?
Do characteristic properties change when sample changes?
Characteristic properties of a substance do not change when the sample changes. These properties, such as melting point, boiling point, density, and chemical reactivity, are inherent to the substance itself and remain constant regardless of the size or form of the sample.
What makes a sample of matter and homogeneous?
A sample of matter is considered homogeneous if its composition and properties are uniform throughout. This means that the sample has the same characteristics, such as color, density, and chemical composition, in all its parts. This uniformity allows for consistent behavior and properties within the sample.
What atom?
The smallest particle of matter that retains the properties of the element of which it is a sample.
If a mineral sample bubbles when acid is dropped on it which of the following properties does it have?
It is probable a carbonate.
Why is nujol used?
to provide a protective layer or coating for the sample if the sample is a reactive sample. forming a protective layer or coating would prevent decomposition of the sample during the IR reading process.
Do characteristic properties change when sample changes?
Characteristic properties of a substance do not change when the sample changes. These properties, such as melting point, boiling point, density, and chemical reactivity, are inherent to the substance itself and remain constant regardless of the size or form of the sample.
What makes a sample of matter and homogeneous?
A sample of matter is considered homogeneous if its composition and properties are uniform throughout. This means that the sample has the same characteristics, such as color, density, and chemical composition, in all its parts. This uniformity allows for consistent behavior and properties within the sample.
Kelly has a sample of an unknown substance. Which properties of the substance will be the same no matter how large or small her sample is?
The chemical composition and intrinsic properties, such as density, melting point, boiling point, and specific heat capacity, will remain the same regardless of the sample size. These properties are characteristic of the substance itself and do not change with the amount of the sample.
What do you call a sample of matter that has more than one set of properties?
A sample of matter that has more than one set of properties is called a mixture. A mixture is a combination of two or more substances that are physically combined but not chemically bonded. Each component of a mixture retains its individual properties, allowing for the observation of multiple sets of properties within the same sample.
What two properties can be measured for any sample of matter?
Mass
What is the relationship between sample and population?
From a sample of a population, the properties of the population can be inferred.
When can chemical properties be observe?
chemical properties can be observed only when the substances in a sample of matter are changing into different substances
What atom?
The smallest particle of matter that retains the properties of the element of which it is a sample.
How will identifying if a property is chemical or physical?
A physical property can be observed without changing the sample. Chemical properties requires you to change the sample.
What is each sample does not necessarily have the same properties as every other sample?
You will typically have an experimental parameter that will be varied as part of testing a hypothesis.
Can characteristic properties will change if you have a different amount of a sample.?
This depends for intensive (not dependent of mass) and extensive (dependent of mass) properties.
What condition can chemical properties be observed?
Chemical Properties can be observed only when substances in a sample of matter are changing into different substances.
