Period

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Part t" ldentifying elements

Date

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Substance Chernical formula Elements

Calciurn carbonate CaCO3

Sodium carbonate NarCOg

Sodium bicarbonate NaHCOg

Mugnesium sulfate MgSOn

Calcium chloride CaCl,

Sodium chloride NaCl

Ascorbic acid CoHaO6

Citric acid CsHsOT

Sucrose crzHzzott

Part 2, Questions

1. Which substance has the greatest nurrrber of elements?

2. Altogethe4 how many different elements are in the nine substances?

3. lAlhichelemeutis-found in the greatest number of substances?

4. FIow nnany elements are in the substance carbon dioxide?

5. How many elernents arre in the zubstance water?

6. Which of the nine substances are rnade of trnro elements?

How rnany?

7: Which of the nine substances are made of three elements?

8. \,Vhich of the nine substances are made of four elernents?

:

FOSS Chemical lnterastions CourseO The Hegents of the University ol CalHorniaCan be duplicated lor classroom or workshop use.

lnvestigatlon 2: ElernentsNotebook Sheet13