Chemistry Quiz on Matter and Mixtures

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Which of the following is NOT a characteristic of a compound?

It has the same properties as the elements that make it up. (correct)

It is made up of two or more elements chemically combined.

It has a fixed proportion of elements.

It can be broken down into simpler substances by chemical reactions.

What is the simplest form of matter that cannot be broken down into simpler substances by chemical means?

Element (correct)

Compound

Substance

Mixture

Which of the following is an example of a diatomic element?

Oxygen (O2) (correct)

Water (H2O)

Helium (He)

Sodium (Na)

Which of the following statements is TRUE about the composition of matter?

Matter can be composed of either elements, compounds, or mixtures. (A) Signup and view all the answers

Which of the following is a characteristic of a substance?

The particles in a substance are all identical in composition. (B) Signup and view all the answers

Which of the following is NOT a physical property of matter?

Flammability (C) Signup and view all the answers

What happens to the density of a substance if you cut it in half?

The density remains the same. (B) Signup and view all the answers

What is the term for the temperature at which a liquid transforms into a gas?

Boiling point (A) Signup and view all the answers

In a solution of salt water, what is the solvent?

Water (C) Signup and view all the answers

Which of the following would be considered a good example of high viscosity?

Honey (A) Signup and view all the answers

Which of the following is NOT a characteristic of a heterogeneous mixture?

Components appear blended together. (A) Signup and view all the answers

Which of the following is an example of a homogeneous mixture?

Salt water (B) Signup and view all the answers

What is the key difference between a substance and a mixture?

Substances have a fixed composition, while mixtures have a variable composition. (C) Signup and view all the answers

Which of the following is a characteristic shared by both homogeneous and heterogeneous mixtures?

Components are physically combined. (B) Signup and view all the answers

What is the main reason why a heterogeneous mixture is not uniform in appearance?

The components are not evenly distributed. (C) Signup and view all the answers

What is the volume of a rectangular prism that has the following dimensions: length = 12 cm, width = 5 cm, height = 3 cm?

180 $cm^{3}$ (A) Signup and view all the answers

A student is trying to determine the volume of an irregularly shaped rock. They fill a graduated cylinder with 50 mL of water, then drop the rock into the cylinder. The water level rises to 75 mL. What is the volume of the rock?

25 mL (D) Signup and view all the answers

A 10 g cube has a volume of 10 $cm^{3}$. What is the density of the cube?

1 $g/cm^{3}$ (D) Signup and view all the answers

What is the volume of a cylinder that has a radius of 5 cm and a height of 10 cm?

1570 $cm^{3}$ (C) Signup and view all the answers

What is the difference between the volume of a cube and the volume of a rectangular prism?

A cube is a special type of rectangular prism where all sides are equal. (C) Signup and view all the answers

Which of the following is NOT a sign that a chemical change has occurred?

Change in shape (D) Signup and view all the answers

A scientist combines two chemicals in a beaker. The beaker becomes hot and a new gas is released. Which of the following statements best explains what happened?

The chemicals underwent a chemical change, and their composition changed. (A) Signup and view all the answers

Why is the color change of a leaf in the fall considered a chemical change?

Because the leaf is changing its chemical composition (B) Signup and view all the answers

A student mixes salt and water. The salt dissolves in the water. What type of change has occurred?

A physical change, because the salt and water can be separated (D) Signup and view all the answers

Which statement BEST describes the Law of Conservation of Matter?

The total mass of reactants in a chemical reaction always equals the total mass of products. (D) Signup and view all the answers

Which of the following is NOT a chemical property?

Boiling Point (D) Signup and view all the answers

Which of the following is an example of a chemical change?

Burning wood (D) Signup and view all the answers

Which of the following is NOT a chemical change?

Dissolving (C) Signup and view all the answers

What is the difference between combustibility and flammability?

Combustibility refers to the ease of ignition, while flammability refers to the ease of burning. (B) Signup and view all the answers