7.6 Quiz Duvall

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Use the periodic table to identify which statement best describes carbon dioxide, CO2?

It is an element that consists of 3 total atoms.

It is an element that consists of 3 total molecules.

It is a compound that consists of 3 total molecules.

It is a molecule that consists of 3 total atoms.

Elements and compounds are made of one kind of atom.

Elements and compounds are made of more than one kind of atom.

Elements are made of molecules, and compounds are made of atoms.

Elements are made of one kind of atom, and compounds are made of more than one kind of atom.

It consists of 12 carbon atoms, 6 hydrogen atoms, and 12 oxygen atoms.

It consists of 12 carbon atoms, 12 hydrogen atoms, and 6 oxygen atoms.

It consists of 6 carbon atoms, 6 hydrogen atoms, and 12 oxygen atoms.

It consists of 6 carbon atoms, 12 hydrogen atoms, and 6 oxygen atoms.

Elements are represented by a single chemical symbol.

An element’s symbol must start with a capital letter.

The chemical formula for chlorine gas is C.

Compounds have multiple chemical symbols that together represent the elements that constitute the compound.

A compound, such as water, can have different chemical formulas.

Use the periodic table to identify which statement best describes carbon dioxide, CO2?

It is an element that consists of 3 total atoms.

It is an element that consists of 3 total molecules.

It is a compound that consists of 3 total molecules.

It is a molecule that consists of 3 total atoms.

Think about the similarities and differences between elements and compounds. Which of the following is true?

Elements and compounds are made of one kind of atom.

Elements and compounds are made of more than one kind of atom.

Elements are made of molecules, and compounds are made of atoms.

Elements are made of one kind of atom, and compounds are made of more than one kind of atom.

Glucose has the chemical formula C6H12O6. Which of the following is true about one molecule of glucose?

It consists of 12 carbon atoms, 6 hydrogen atoms, and 12 oxygen atoms.

It consists of 12 carbon atoms, 12 hydrogen atoms, and 6 oxygen atoms.

It consists of 6 carbon atoms, 6 hydrogen atoms, and 12 oxygen atoms.

It consists of 6 carbon atoms, 12 hydrogen atoms, and 6 oxygen atoms.

Elements and compounds are similar in some ways and different in others. Select THREE correct answers.

Elements are represented by a single chemical symbol.

An element’s symbol must start with a capital letter.

The chemical formula for chlorine gas is C.

Compounds have multiple chemical symbols that together represent the elements that constitute the compound.

A compound, such as water, can have different chemical formulas.

Classify each substance as an element, a compound, or a molecule. Move each answer to the correct box. Each answer may be used more than once.

Helium (He)

Water (H2O)

chlorine (Cl2)

ammonia (NH3)

nitrogen gas (N2)

Element

Compound

Molecule