Compounds

Compounds

Assessment

Flashcard

Chemistry

11th Grade

Practice Problem

Hard

Created by

Wayground Content

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15 questions

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1.

FLASHCARD QUESTION

Front

What is a compound?

Back

A compound is a substance formed when two or more elements chemically bond together in a fixed ratio.

2.

FLASHCARD QUESTION

Front

What is the chemical formula for magnesium hydroxide?

Back

Mg(OH)₂

3.

FLASHCARD QUESTION

Front

What happens to magnesium when it forms an ion?

Back

Magnesium loses two electrons to form a Mg²⁺ ion.

4.

FLASHCARD QUESTION

Front

What is the ratio of ions in the compound formed by aluminum and sulfur?

Back

The correct formula is Al₂S₃.

5.

FLASHCARD QUESTION

Front

What shape does a trigonal pyramidal molecule have?

Back

A trigonal pyramidal molecule has a central atom with three bonded atoms and one lone pair, creating a pyramid shape.

6.

FLASHCARD QUESTION

Front

What happens to iodine when it forms an ion?

Back

Iodine gains one electron to form an I⁻ ion.

7.

FLASHCARD QUESTION

Front

What is the significance of the subscript in a chemical formula?

Back

The subscript indicates the number of atoms of each element in a compound.

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