How Many Atoms Are Represented by One Formula Unit of Aluminum

question 94

Multiple Choice

How many atoms are represented by one formula unit of aluminum chromate, Al₂(CrO₄) ₃?

• A) 17
• B) 15
• C) 21
• D) 3
• E) none of these

Understand how social networking sites maintain user engagement and marketer dominance.

Identify the roles users play in social media content creation and sharing.

Understand the concept of vertical and focused networks based on common interests.

Comprehend identity management across social networking sites, including issues of portability and security.

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Definitions:

Solve

To solve an equation means to find all possible values of the variable that make the equation true.

Expression

A combination of symbols that represent a quantity or formula, which can include numbers, variables, and operation symbols.

Solve

To find the value(s) of variable(s) that satisfy an equation, inequality, system of equations, or other mathematical conditions.

Expression

A combination of symbols and operators in mathematics that represents a value.