Chemistry Chapter 2 Quiz 2
Which best describes a compound such as sodium chloride?
NOT A mixture of two common elements that can be separated by physical means
A teacher makes the following statement.
“Gasoline boils at a relatively low temperature (about 150°C). The kerosene is removed at around 200°C, followed by diesel oil at 300°C and fuel oil at around 370°C.”
What topic is the teacher most likely talking about?
NOT evaporation of a mixture
Which is a pure substance?
NOT salt water
When a drawing made with a black marker gets wet, the marker bleeds and more separates into several colors. What method of separation does this describe?
Which method would be best for separating the components of a mixture that is made from two different liquids?
The table shows the percentages of hydrocarbons that are found in a sample of crude oil.
Based on the given information, what is the best classification for this sample of crude oil?
NOT a pure compound
Which cannot be separated into simpler substances?
Which pure substance can be classified as an element?
Which physical method can be used for obtaining a sample of salt from a small beaker of salt water?
Which is a characteristic of mixtures?
They can be separated by physical processes.