Physical Science Solutions, Acids Bases, Energy test

An extremely strong base would have a pH of:

• 1
• 7
• 9
• 14

How do acidic solutions taste?

• Delicious
• Sweet
• Bitter
• Sour

Tags

NGSS.MS-LS1-8

Based on the solubility chart, which of the listed salts is the most soluble at 40°C?

• KCl
• KClO₃
• KNO₃
• Pb(NO₃)₂

Tags

NGSS.HS-PS1-5

What conclusion can be made using this solubility curve?

• Decreasing temperatures always increases solubility 
• Increasing temperatures always increases solubility
• Increasing temperatures usually increases solubility
• Temperature has no affect on solubility

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Which characteristics describe a base?

• sour, indicator turns red, pH less than 7, produces hydrogen ions (H⁺)
• bitter, slippery, indicator turns blue, pH greater than 7, produces hydroxide ions (OH^-)
• neutral, pH of 7
• sour, indicator turns red, pH greater than 7

Which characteristics describe an acid?

• sour, indicator turns red, pH less than 7, produces hydrogen ions (H⁺)
• bitter, slippery, indicator turns blue, pH greater than 7, produces hydroxide ions (OH^-)
• neutral, pH of 7
• sour, indicator turns red, pH greater than 7

A substance that changes color when mixed with an acid or base is a(n) ___.

• indicator
• neutralizer
• corrosive
• electricity

Tags

NGSS.MS-PS1-2

What color does litmus paper turn in the presence of an acid?

• blue
• black
• green
• red

Tags

NGSS.MS-PS1-2

A substance that is a 10 on the pH scale would be a(n) ____.

• acid
• neutral
• base
• indicator

Neutral solutions have a pH of:

• 0

• 1

• 7

• 14