How many oxygen atoms are in $$MgSO_4$$ ?

There are 4 oxygen atoms in the formula $$MgSO_4$$ .

What is the chemical formula for a compound with 1 nickel atom and 2 fluorine atoms?

The chemical formula is $$NiF_2$$ .

How many carbon atoms are in the formula $$C_{6}H_{12}O_6$$ ?

There are 6 carbon atoms in the formula $$C_{6}H_{12}O_6$$ .

What are molecules made of more than one type of atom called?

Molecules made of more than one type of atom are called compounds.

What is the difference between an element and a compound?

An element is a pure substance made of only one type of atom, while a compound is made of two or more different types of atoms.

What does the formula $$Cl_2$$ represent?

The formula $$Cl_2$$ represents a molecule of chlorine gas, which consists of two chlorine atoms.

How do you determine the number of atoms in a chemical formula?

Count the number of atoms for each element based on the subscripts in the formula.

What is the significance of the coefficients in a chemical equation?

Coefficients indicate the number of molecules or moles of a substance involved in a reaction.

What is the formula for carbon dioxide?

The formula for carbon dioxide is $$CO_2$$ .

Counting Atoms Flashcards

Student preview

15 questions

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1.

FLASHCARD QUESTION

Front

What is a molecule?

Back

A molecule is a group of two or more atoms bonded together. It can consist of the same or different types of atoms.

2.

FLASHCARD QUESTION

Front

What is a compound?

Back

A compound is a substance formed when two or more different types of atoms bond together chemically.

3.

FLASHCARD QUESTION

Front

What is the chemical formula for water?

Back

4.

FLASHCARD QUESTION

Front

Back

A molecule of water contains 3 atoms: 2 hydrogen atoms and 1 oxygen atom.

5.

FLASHCARD QUESTION

Front

What does the subscript in a chemical formula indicate?

Back

6.

FLASHCARD QUESTION

Front

What is the chemical formula for magnesium sulfate?

Back

7.

FLASHCARD QUESTION

Front

Back

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