UNIT 1 Review

Acids and bases are similar and different in which of the following ways?

• Both can conduct electricity, but acids taste sour and bases taste bitter.

• Both taste sour and have a pH above 7.

• Both are slippery to touch and turn litmus paper red.

• Both are neutral and do not react with metals.

The pH scale is used to measure how acidic or basic a substance is in relation to water.

• It measures how acidic or basic a substance is in relation to water.

• It measures the temperature of water.

• It measures the density of a substance.

• It measures the color of a solution.

Acids and bases are similar and different in their properties. The pH scale measures how acidic or basic a substance is, and it can tell us about acids and bases in relation to water. Which statement best describes the relationship between acids, bases, and the pH scale?

• Acids have a pH less than 7, bases have a pH greater than 7, and water is neutral at pH 7.

• Acids and bases both have a pH of 7.

• Bases have a pH less than 7, acids have a pH greater than 7, and water is acidic at pH 5.

• Acids and bases cannot be measured using the pH scale.

apple cider vinegar, water, bleach, and a bar of soap. Choose one to be the 'odd one out.'

• Bleach

• Apple cider vinegar

• Water

• Bar of soap

Acids and bases are two different types of substances that you encounter in everyday life, each with its own unique properties. Which of the following is true about acids and bases?

• They are the same type of substance

• They are two different types of substances

• They have no unique properties

• They are only found in laboratories

The pH scale measures:

• the acidity or alkalinity of a solution

• the temperature of a solution

• the density of a solution

• the color of a solution

According to the pH scale, what is considered neutral?

• pH less than 7

• pH equal to 7

• pH greater than 7

Fill in the blank: A substance with a pH less than 7 is considered _________.

• acidic

• basic

• neutral

• alkaline

Which of the following substances is the most alkaline according to the pH scale shown?

• Soap

• Drain cleaner

• Baking soda

A substance with a pH of 0 is the strongest acid according to the pH scale.

• True

• False

Tags

NGSS.MS-PS1-2