Multiple Choice
Write the chemical formula for the following compound: Calcium selenide hexahydrate
Table of contents
- 1. Matter and Measurements4h 29m
- What is Chemistry?7m
- The Scientific Method9m
- Classification of Matter16m
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- 3. Ionic Compounds2h 18m
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- Ionic Bonding6m
- Naming Monoatomic Cations6m
- Naming Monoatomic Anions5m
- Polyatomic Ions25m
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- Writing Formula Units of Ionic Compounds7m
- Naming Ionic Hydrates6m
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- Types of Chemical Reactions12m
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- 21. The Generation of Biochemical Energy2h 8m
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- 24. Lipid Metabolism1h 45m
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- 26. Nucleic Acids and Protein Synthesis2h 54m
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- Overview of Protein Synthesis4m
- Transcription: mRNA Synthesis9m
- Processing of pre-mRNA5m
- The Genetic Code6m
- Introduction to Translation7m
- Translation: Protein Synthesis18m
3. Ionic Compounds
Naming Ionic Hydrates
Struggling with GOB Chemistry?
Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
Give the systematic name from the given formula: K2Cr2O7 ∙ 3 H2O
A
dipotassium dichromate trihydrate
B
potassium dichromate trihydrate
C
potassium chromate trihydrate
D
trihydrate potassium chromate
Verified step by step guidance1
Identify the chemical formula given: K2Cr2O7 ∙ 3 H2O. This represents a compound with potassium (K), dichromate (Cr2O7), and water molecules (H2O).
Recognize that K2Cr2O7 is known as potassium dichromate. The 'di-' prefix indicates two chromium atoms in the dichromate ion (Cr2O7).
Note the presence of '∙ 3 H2O' in the formula, which indicates that the compound is a hydrate. Specifically, it contains three water molecules, hence the term 'trihydrate'.
Combine the names of the components: The systematic name is formed by combining the name of the ionic compound (potassium dichromate) with the number of water molecules (trihydrate).
Verify the systematic name: The correct systematic name for the compound K2Cr2O7 ∙ 3 H2O is 'potassium dichromate trihydrate', as it accurately reflects the composition and structure of the compound.
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Naming Ionic Hydrates practice set
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