SPS6B

Which of the following are properties of acids?

• They conduct electricity when dissolved in water

• They taste sour

• They react with metals to produce hydrogen gas

• All of the answer choices are correct

if 150g of NaClO3 were added to a 100g of water at 60 degrees Celsius the solution would be...

• saturated

• supersaturated

• unsaturated

• over saturated

if 60g of KNO3 were added to a 100g of water at 20 degrees Celsius the solution would be...

• over saturated

• supersaturated

• saturated

• unsaturated

if red litmus paper turns blue when placed in a substance what is the pH

• acidic

• neutral

• basic

• soluble

List the steps of the scientific method

d

e

f

c

b

a

Communicate results

Analyze results

Ask a question

Form a hypothesis

Draw conclusions

Conduct experiment

Which letter represents amplitude? (a)  

• A

• B

• C

• D

• E

Tags

NGSS.MS-PS4-1

Which household item would be the strongest base

• drain cleaner

• milk

• water

• bleach

Which household item would be the strongest acid

• coffee

• blood

• battery acid

• lemon

Tags

NGSS.MS-PS1-2

At approximately what temperature does the solubility of sodium chloride, NaCl, match the solubility of potassium dichromate, K₂Cr₂O₇?

• 60 ºC

• 30 ºC

• 50 ºC

• 83 ºC

Tags

NGSS.MS-PS1-4

Which substance is MOST soluble at 0 ºC?

• KI

• NaNO₃

• NaCl

• Ce₂(SO₄)₃