
S2 Unit 7 Week 1 Homework (Due 01-12-2024)
Flashcard
•
Chemistry
•
10th Grade
•
Practice Problem
•
Hard
Wayground Content
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15 questions
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1.
FLASHCARD QUESTION
Front
What is a hydrate?
Back
A hydrate is a compound that contains water molecules within its structure, typically represented as a solid with a specific number of water molecules attached.
2.
FLASHCARD QUESTION
Front
How do you determine the formula of a hydrate?
Back
To determine the formula of a hydrate, calculate the mass of water lost upon heating, then use the molar mass of the anhydrous compound and the molar mass of water to find the ratio of water to the compound.
3.
FLASHCARD QUESTION
Front
What is the molar mass of water (H₂O)?
Back
The molar mass of water is approximately 18 g/mol.
4.
FLASHCARD QUESTION
Front
What is the significance of the percentage mass loss in hydrates?
Back
The percentage mass loss indicates the amount of water in the hydrate, which helps in determining its formula.
5.
FLASHCARD QUESTION
Front
What is the difference between ionic and molecular compounds?
Back
Ionic compounds are formed from the electrostatic attraction between ions, while molecular compounds are formed from covalent bonds between atoms.
6.
FLASHCARD QUESTION
Front
How do you name ionic compounds?
Back
Ionic compounds are named by stating the cation (positive ion) first, followed by the anion (negative ion), with the anion's name often ending in '-ide' or '-ate'.
7.
FLASHCARD QUESTION
Front
What is the formula for Iron (III) hydroxide?
Back
The formula for Iron (III) hydroxide is Fe(OH)₃.
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