Ph Acids and Bases

What color does acid turn litmus paper?

• It turns litmus paper purple.

• It turns red litmus paper blue.

• It turns blue litmus paper blue.

• It turns blue litmus paper red.

What are properties of acids?

• Bitter, slippery, ph above 7

• Sour, reacts with metals, ph below 7

• Sour, reacts with metals, ph above 7

• Bitter, ph of 7, does not react with metals

Explain what happens when a strong acid and a strong base are poured into the same container.

• they form separate layers

• they mix physically but not chemically

• they break apart into separate elements

• they react chemically to form a salt

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which statement is true when acids and bases are mixed together?

• acids become stronger

• bases become stronger

• there is no change

• they neutralize each other

This substance releases OH- into solution

• Acid

• Base

• Neutral

What color does bases turn litmus paper?

• It turns litmus paper purple.

• It turns blue litmus paper red.

• It turns red litmus paper blue.

• It turns red litmus paper re

What are properties of a base?

• Slippery, bitter, does not react with metals, pH above 7.

• Slippery, bitter, reacts with metals, pH below 7.

• Sour, reacts with metals, pH below 7

• Sour, reacts with metals, pH above 7.

Where would you say you are on the learning scale ? there is no wrong answer- just be honest!

• I've got this! I am at a 4! I can describe what happens when an acid and a base are mixed and explain it to others.

• I am at a 3! I can classify an unknown substance as an acid/base/neutral based on its pH.

• I am getting better but am only at a 2 - I can recognize or recall specific vocabulary and/or concepts, such as:

  Acid, Base, pH Scale, Neutral, Salt

• I am still at a 1 - I can recognize how the scale is organized.

Tags

NGSS.MS-PS1-2

According to the pH range which substance is more acidic than lemon juice

• Hydrochloric acid

• cabbage

• milk

Bleach is a strong base, what is the pH level of bleach?

• 13

• 14

• 1

• 2