If a substance has a pH of 10 it is considered

• Acidic
• Basic
• Neutral

Acids produce _________ ions when they break down or dissocciate. 

• Hydroxide (OH-)
• Water
• Chlorine (Cl-)
• Hydrogen (H+)

Tags

NGSS.MS-PS1-2

When blue litmus paper is placed in a base

• it turns red
• it stays blue
• it turns green
• it dissolves

Bases release ____________ ions when they break down or dissociate. 

• Hydrogen (H+)
• Hydroxide (OH-)
• Chlorine (Cl-)
• no

Water is neutral because the number of hydrogen and hydroxide ions is _________.

• the same
• different

Tags

NGSS.HS-PS1-2

The pH scale ranges from ____________.

• 0-7
• 1-100
• 1-20
• 0-14

Bases are substances that ...

• accept hydrogen atoms
• reject hydrogen atoms

A(n) ______ is a substance with a pH less than 7

• Acid
• Alkaline
• Base
• Buffer

A(n) _______ is a substance with a pH greater than 7.

• Base
• Acid
• Buffer
• Water

What is the only substance with a neutral pH of 7?

• Milk
• Orange Juice
• Water
• Blood