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Chapter 2: Q27 E (page 67)
Explain why the symbol for an atom of the element oxygen and the formula for a molecule of oxygen differ.
The symbol O is used to represent an atom/ element while O2 is the molecular formula.
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Samples of compound X, Y, and Z are analyzed, with results shown here.
Do these data provide example(s) of the law of definite proportions, the law of multiple proportions, neither, or both? What do these data tell you about compounds X, Y, and Z?
Open the Build a Molecule simulation (http://openstaxcollege.org/l/16molbuilding) and select the “Larger Molecules” tab. Select an appropriate atoms “Kit” to build a molecule with two carbon and six hydrogen atoms. Drag atoms into the space above the “Kit” to make a molecule. A name will appear when you have made an actual molecule that exists (even if it is not the one you want). You can use the scissors tool to separate atoms if you would like to change the connections. Click on “3D” to see the molecule, and look at both the space-filling and ball and-stick possibilities.(a) Draw the structural formula of this molecule and state its name.(b) Can you arrange these atoms in any way to make a different compound?
Which postulate of Dalton’s theory is consistent with the following observation concerning the weights of reactants and products? When 100 grams of solid calcium carbonate is heated, 44 grams of carbon dioxide and 56 grams of calcium oxide are produced.
Write the empirical formula for the following compounds:
What are the IUPAC names of the following compounds?
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