pH and Indicators

An indicator will ______________ when it is in contact with an acid or base

• Bubble
• Form a new substance
• Change color
• Stay the same color

Tags

NGSS.MS-PS1-2

Bases will turn litmus paper __________, while acids will turn litmus paper __________.

• blue.....red
• red.....blue
• pink.........colourless
• colourless..........pink

Tags

NGSS.MS-PS1-2

What is a substance that is one color in an acid and another color in a base? 

• Oxidizer
• Indicator

The pH of a strong acid would be:

• 1-2
• 5-6
• 8-9
• 12-13

The pH of a strong base would be:

• 1-2
• 5-6
• 8-9
• 13-14

The pH of a weak base would be:

• 1-2
• 5-6
• 8-9
• 12-13

According to the image, the substance tested is a...

• Acid
• Neutral
• Strong Acid
• Base

Tags

NGSS.MS-PS1-2

The word basic has a similar meaning to which of the following:

• volatile

• neutral

• acidic

• alkaline

pH is a measure of the concentration of _____________ ions in solution.

• hydroxide

• hydrogen

• sodium

• positive

Which of the following pH would you expect to have the highest concentration of hydroxide ions (OH^-)?

• 1

• 4

• 7

• 9

• 14