PH Scale and Neutralization

Which of the following will change the red litmus paper to blue?

• Sodium hydroxide

• Hydrochloric acid

• Sulphuric acid

• Nitric acid

Which substance is alkali?

• Toothpaste

• Vinegar

• Lemon juice

• Soft drink

What is Nuetralization?

• A neutralization reaction is a chemical reaction between an acid and a base which produces a more neutral solution (closer to a pH of 7).

• a chemical substance that neutralizes alkalis

• a substance that can accept hydrogen ions ( protons) or more generally, donate a pair of valence electrons.

• A neutralization reaction is a chemical reaction between an acid and a base which produces a more neutral solution (above a ph of 8)

Tags

NGSS.MS-PS1-5

When Water is added to an Acid or Basic.It will try to make it Nuetral.

• True

• False

Tags

NGSS.MS-PS1-5

Neutral solutions have a pH of:

• 0

• 1

• 7

• 14

When an equal strength acid and base are mixed, what kind of chemical reaction occurs?

• Neutralization

• Combustion

• Oxdation

• Decomposition

Which is true?

• pH of less than 7 is basic; pH of more than 7 is acidic

• pH of less than 7 is acidic; pH of more than 7 is basic

Is pure water acidic, basic, or neutral?

• Acidic

• Basic

• Neutral

pH is the measure of the concentration of ______.

• Acids

• H+ ion

• OH- ion

• Bases

A substance is found to have the following characteristics:

Very bitter taste

Feels slippery to the touch

Produces OH- ions when dissolved in water

In what category would the substance be classified?

• acid

• base

• enzyme

• fatty acid