Acids and Alkalis - Mastering Lab Safety and pH: Hazard Symbols, Indicators, and Acid Reactions!

What does the hazard symbol with a flame indicate?

Which symbol signifies a health hazard?

Wearing goggles and gloves can reduce risks in a chemical practical.

What are some measures to take to reduce risk in a lab? (Select all that apply)

What pH value is considered neutral?

Which indicator is commonly used to discover whether a solution is an acid or alkali?

What are some examples of natural indicators? (Select all that apply)

How can acids and alkalis be useful in everyday life?

Diluting a strong acid makes it weaker.

What characteristic makes an acid strong?

Identify strong acids among the following options. (Select all that apply)

Which of the following indicators is created from red cabbage?

All acids are harmful and should be avoided.

What is the best way to communicate your method so others can replicate your results?

Which personal protective equipment (PPE) is most important for protecting your eyes during a chemical practical?

It is safe to smell chemicals directly from the container to identify them.

What does a pH value of 2 indicate about a solution?

Which hazard symbol means the substance can burn skin or corrode metals?

Which actions are appropriate if a chemical splashes onto your skin? (Select all that apply)

What is the pH of a neutral solution?

Which substances are commonly alkaline (basic)? (Select all that apply)

A solution has a pH of 9. Which statement is true?

Which indicator turns red in acid and blue in alkali?

Phenolphthalein is colorless in acid and turns what color in alkali?

Which are reasonable uses of universal indicator? (Select all that apply)

Universal indicator can show a range of colors because it is a mixture of indicators.

Which is a common example of a weak acid?

Which statements describe weak acids? (Select all that apply)

What makes an acid “strong” in water?

Which word best describes the process of adding water to an acid to reduce its concentration?

Put the steps for safely diluting an acid in the correct order.

Explain how you could use an indicator to compare the acidity of two unknown solutions. Include what data you would collect and how you would decide which is more acidic.

Match each substance to whether it is typically acidic or alkaline.

Sort the examples into acids and alkalis.