The list below includes some of the properties of ammonia. Identify the physical properties in the list. Check all of the boxes that apply.
The list below includes some of the properties of butane, a common fuel. Identify the chemical properties in the list. Check all of the boxes that apply.
Sample A has sample B.
If sample B is attracted to a magnet, sample A .
The pictures to the right show two samples of substance X. Answer the questions below about the intensive and extensive properties of substance X. You may assume that both cubes are solid (that is, not hollow inside).Sample A melts at sample B.
An industrial chemist is studying a sample of an unknown metal. Describe two ways he could change the metal physically and two ways he could change the metal chemically to try to identify it.
He could physically change the metal by hammering it into a different shape and by melting it; both changes leave it as the same metal. He could chemically change it by reacting a small sample with acid and by exposing it to air to see whether it oxidizes. The observed changes and reaction products could help identify the metal.
Sample B has sample A.
Your answer may include the following changes. Select each of the changes that you included in your answer.
If sample A floats in water, sample B .
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