Multiple Choice
Which of the following is the correct molecular formula for ammonia?
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3. Chemical Reactions
Molecular Formula
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Which of the following is the correct molecular formula for silicon tetrachloride?
A
Si4Cl
B
SiCl2
C
Si2Cl4
D
SiCl4
Verified step by step guidance1
Understand that the name 'silicon tetrachloride' indicates the compound contains silicon (Si) and chlorine (Cl) atoms.
Recognize that the prefix 'tetra-' means four, so there are four chlorine atoms bonded to one silicon atom.
Write the molecular formula by placing one silicon atom followed by four chlorine atoms, which gives SiCl4.
Check the options given: Si4Cl, SiCl2, Si2Cl4, and compare them to the correct formula SiCl4.
Confirm that SiCl4 correctly represents silicon tetrachloride because it has one silicon atom and four chlorine atoms, matching the name.
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