Acids and Bases

Front

What is the pH scale?

Back

The pH scale measures how acidic or basic a solution is, ranging from 0 (very acidic) to 14 (very basic), with 7 being neutral.

Front

What is an acid?

Back

An acid is a substance that donates hydrogen ions (H+) in a solution, typically having a pH less than 7.

Tags

NGSS.MS-PS1-1

Front

What is a base?

Back

A base is a substance that accepts hydrogen ions (H+) or produces hydroxide ions (OH-) in a solution, typically having a pH greater than 7.

Front

What happens when an acid reacts with a base?

Back

When an acid reacts with a base, they neutralize each other, producing water and a salt.

Front

What is a neutral substance?

Back

A neutral substance has a pH of 7, meaning it is neither acidic nor basic.

Front

What is the effect of adding an alkaline substance to an acidic solution?

Back

Adding an alkaline substance increases the pH of the acidic solution, making it less acidic.

Front

What ions do bases produce in water?

Back

Bases produce hydroxide ions (OH-) when dissolved in water.

Front

What is the strongest acid on the pH scale?

Back

The strongest acid has the lowest pH value, which is close to 0.

Front

What is the relationship between pH and acidity?

Back

The lower the pH value, the more acidic the solution is.

Front

What is citric acid?

Back

Citric acid is a weak organic acid found in citrus fruits, with a pH typically around 3.