QUAL review

Front

What is a conductivity meter used for?

Back

A conductivity meter is used to determine if ions are present in a solution by measuring the solution's ability to conduct electricity.

Front

What happens when solutions of MgSO4 and Na2SO4 are combined?

Back

No observable reaction (NOR) occurs when solutions of MgSO4 and Na2SO4 are combined.

Front

What is the formula of the yellow precipitate that forms in certain reactions?

Back

The formula of the yellow precipitate that forms is PbI2.

Front

True or False: A valid flow chart question is 'Does no reaction occur?'

Back

False.

Front

True or False: A valid flow chart question is 'Is the solution conductive?'

Back

False.

Front

What does the term 'precipitate' mean in chemistry?

Back

A precipitate is a solid that forms and settles out of a liquid mixture during a chemical reaction.

Front

What is the significance of indicators like phenol red in chemical reactions?

Back

Indicators like phenol red are used to determine the pH of a solution, indicating whether it is acidic or basic.

Front

What is the role of ions in a solution?

Back

Ions are charged particles that can conduct electricity in a solution, affecting its conductivity.

Front

What does 'NOR' stand for in chemical reactions?

Back

NOR stands for 'No Observable Reaction,' indicating that no visible change occurs.

Front

What is the chemical formula for magnesium sulfate?

Back

The chemical formula for magnesium sulfate is MgSO4.