PS1.1 CFA

Front

The atomic arrangements of two substances (A and B) are shown in the diagram. Which statement describes one of the substances correctly?

Back

Substance B is a compound as the atoms can be separated only by chemical processes.

Front

The diagram represents the atomic arrangement of a substance. Which answer option best describes the substance? Options: 1. It is made up of a single element. 2. The atoms can be separated by chemical processes. 3. It is made up of a single element. 4. The atoms can be separated by physical processes. 5. It is made up of two different elements. 6. The atoms can be separated by chemical processes. 7. It is made up of two different elements. 8. The atoms can be separated by physical processes.

Back

1. It is made up of a single element. 2. The atoms can be separated by chemical processes.

Front

The chart shows a list of formulas. Which statement is true about the substances in the list?

Back

They all contain oxygen.

Front

Classify the figures as compound, element, or mixture.

Back

Figure 1: element; Figure 2: compound; Figure 3: mixture

Front

The diagram shows the atomic arrangement of two substances formed by hydrogen (H) and oxygen (O) atoms. Which option correctly identifies the substances?

Back

substance 1: mixture; substance 2: compound

Front

A teacher asks her students to classify the substances listed in the table shown as elements, compounds, or mixtures. A student claims that all of the substances are compounds. Which statement correctly describes the student’s claim?

Back

The student’s claim is correct because the atoms in the substances are chemically combined to form a compound.

Front

What do an iron nail, a flower, a glass of water, and a shipping crate have in common?

Back

They are all made of atoms.

Front

What does each marble represent in a model showing how particles in water and ice are arranged?

Back

atom

Front

What does the atom arrangement represent?

Back

a mixture made of one compound and one element