Acid-Base Reactions and Charges

The video tutorial explains how to predict the products of acid and base reactions. It begins with an introduction to acids and bases, followed by detailed examples of how acids donate H+ ions and bases accept them. The tutorial then applies these concepts to predict the outcomes of various acid-base reactions, emphasizing the conservation of charge and the importance of writing chemical formulas correctly.

What is the main focus of the initial section on acids and bases?

• Learning about molecular weights

• Understanding the charge of molecules

• Predicting the formula of molecules after donating an H+ ion

• Predicting the structure of molecules

When water (H2O) donates an H+ ion, what is the resulting charge of the molecule?

• Negative one

• Positive one

• Neutral

• Negative two

What happens to the charge of HCl when it donates an H+ ion?

• It remains neutral

• It becomes positive one

• It becomes negative one

• It becomes negative two

How does HCO3- change when it accepts an H+ ion?

• It becomes H2CO3 and remains negatively charged

• It becomes H2CO3 and becomes neutral

• It becomes HCO2 and remains negatively charged

• It becomes HCO2 and becomes neutral

What is the convention for writing the formula of acids?

• Oxygen is written first

• Carbon is written first

• Hydrogen is written first

• Hydrogen is written last

In the reaction of HBr as an acid, what is the resulting product after donating an H+?

• Br2

• Br negative

• Br neutral

• Br positive

What is the charge of NH3 after NH2- accepts an H+ ion?

• Positive one

• Neutral

• Negative one

• Negative two

What is the resulting product when HNO3 loses an H+ ion?

• NO3 neutral

• NO2 negative

• NO3 positive

• NO3 negative

How is charge conservation verified in acid-base reactions?

• By ensuring the total number of atoms on both sides of the reaction is equal

• By ensuring the total mass on both sides of the reaction is equal

• By ensuring the total volume on both sides of the reaction is equal

• By ensuring the total charge on both sides of the reaction is equal

What happens to OH- when it picks up an H+ ion?

• It becomes O2

• It becomes OH2

• It becomes H2O

• It becomes H2O2