Chemistry Ions

Noah, Mia, and Charlotte are conducting a science experiment. They mixed equal amounts of H⁺ and OH^- to create a solution. Noah believes that the solution they created is neutral. Is Noah's statement true or false?

• True

• False

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Kai found a substance in the chemistry lab and observed the following characteristics:

It had a very bitter taste when he put a small amount on his tongue

It felt slippery when Harper touched it

When Priya dissolved it in water, it produced OH- ions

How should they classify this substance?

• acid

• base

• enzyme

• fatty acid

Arjun, Avery, and Aria were conducting a science experiment. They found a substance with the following characteristics:

Very sour taste

Feels soft to the touch

Produces H+ ions when dissolved in water

How should they classify this substance?

• acids

• bases

• enzyme

• fatty acid

William was conducting a science experiment and found that a certain substance had a pH less than 7. This substance is likely a(n) ______.

• Acid

• Alkaline

• Base

• Buffer

Mason and Abigail were conducting a science experiment. They were testing different solutions to see which one releases H+ in solution. Daniel suggested they test the following options. Which one should they choose?

• Base

• Acid

• Buffer

• Water

Henry and Maya were doing a chemistry experiment. They mixed a chemical with water and it produced an H₃O. Benjamin asked them, what type of chemical did they use?

• Acid

• Base

Tags

NGSS.MS-PS1-2

Emma and Abigail are conducting a chemistry experiment. They want to produce an (OH) ion in their solution. Which chemical should they mix with water to achieve this?

• Acid

• Base

David was conducting a science experiment and found a substance with a pH greater than 7. This substance is a(n) _______.

• Base

• Acid

• Buffer

• Water

Anika, Samuel, and Grace were conducting a science experiment. They had lemon juice, hydrochloric acid, cabbage, and milk. According to the pH range, which substance did they find to be more acidic than lemon juice?

• Hydrochloric acid

• cabbage

• milk

• phosphoric acid

Tags

NGSS.MS-PS1-2

During a science experiment, Jackson, Oliver, and Roman were testing the acidity of different substances. They came across the term 'pH'. In this context, pH stands for:

• Potency of hydrogen

• Plurality of hydrogen

• Potential of hydrogen

• Pleurisy of hydrogen