Unit 7 - Solutions, Acids & Bases

Arturo and Kailey are making lemonade. They mix sugar, water, and lemon juice together. What is the resulting mixture called?

• A type of mixture where substances are evenly distributed

• A solid material

• A chemical reaction

• A type of gas.

During a science experiment, Aleyah and Rylan mixed sugar into water. In this solution, the substance that is dissolved is called the ______.

• Solvent

• Solute

• Mixture

• Compound

Tristan and Kailey are making a cake. They combine flour, sugar, and eggs in a bowl. What is this combination an example of?

• A chemical combination of substances

• A physical combination of two or more substances

• A single pure substance

• A type of chemical reaction.

Arturo and Kailey are making a smoothie. What is a characteristic of their smoothie as a homogeneous mixture?

• A) Items can be distinguished from one another

• B) Items cannot be distinguished from one another

• C) Separates into layers over time

• D) Has distinct differences.

What is a solution?

• A mixture that appears different throughout

• A mixture that appears the same throughout & is mixed at the molecular level

• A mixture that cannot be separated

• A mixture that is only made of one substance.

Fill in the blank: In a solution, the substance being dissolved is called the ______.

• A) Solvent

• B) Solute

• C) Mixture

• D) Compound

Rylan and Pedro are conducting an experiment in their science class to measure the conductivity of different solutions. What is the definition of conductivity?

• The ability to absorb heat

• The measure of a solution’s ability to conduct electricity

• The capacity to reflect light

• The power to resist pressure.

Arturo and Rylan are conducting an experiment in their chemistry class to test the conductivity of different solutions. They dissolve various compounds in water and measure the conductivity. Which type of compounds yield solutions with high conductivity?

• Covalent compounds

• Ionic compounds

• Metallic compounds

• Organic compounds

During a science experiment, Kailey and Rylan observed that cations and anions easily carry _______ charges through the solution.

• magnetic

• electrical

• thermal

• optical

Kailey and Arturo are conducting an experiment in their chemistry class to test the conductivity of different solutions. They notice that when they test strong acids and bases, the conductivity is:

• Low

• High

• Medium

• None