pH and acid-base rxns

Four substances were tested for pH, lemon juice (pH 2), baking soda (pH 9), bleach (pH 12), and milk (pH 6). Which of the following correctly lists the substances from most basic to acidic?

• lemon juice, milk, baking soda, bleach

• bleach, baking soda, milk, lemon juice

• milk, lemon juice, baking soda, bleach

• baking soda, bleach, lemon juice, milk

Which of these is a property of acidic solutions?

• they taste sour

• they feel slippery

• they are in many cleaning products

• they taste bitter

What type of reation occurs between an acid and a base?

• Combustion

• Synthesis

• Neutralization

• Double Replacement

What are the products of a neutralization reactions

• water

• salt

• acid

• base

Tags

NGSS.MS-PS1-5

Which of the following is a neutralization reaction?

• 2Na + Cl₂ → 2NaCl

• CH₄ + 2O₂ → CO₂ + 2H₂O

• HCl + KOH → KCl + H₂O

• CaCO₃ → CO₂ + CaO

Tags

NGSS.MS-PS1-2

As the pH of a solution gets lower, the solution becomes more _____.

• acidic

• basic (or alkaline)

• neutral

• ionic

Predict the products of this reaction.

HCl + Ca(OH)2

• NaCl

• CaCl2

• CaCl2 + H2O

• H2O

Tags

NGSS.MS-PS1-2

Which element is common to all acids?

• Hydrogen

• Oxygen

• Carbon dioxide

• Helium

A neutralisation reaction is a reaction between 

• Acid and a Base 
• Acid and water 
• Base and water 
• None of the above 

Tags

NGSS.MS-PS1-5

Complete the following reaction:

Hydrochloric acid + magnesium hydroxide -->

• Magnesium chloride + water

• Magnesium + water

• Magnesium chloride + hydrogen

• Magnesium chloride + water + carbon dioxide

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5