Chemistry Unit 4 wksht 1

Identify the separation techniques pictured below. Which technique would be useful to separate a mixture of sand and salt? Of salt and water?

Explain why the technique at left would not be effective in separating a mixture of salt and sugar.

Consider the four containers below. Which of these are mixtures?

Consider the four containers below. Which of these are pure substances?

Consider the four containers below. Which contain only elements?

Consider the four containers below. Which of these are mixtures?

Consider the four containers below. Which of these are pure substances?

Consider the four containers below. Which contain only compounds?

Consider the four containers below. Which contain only elements?

Consider the four containers below. Which of these are mixtures?