PRACTICE:  Chemical Formulas and Chemical Bonds

PRACTICE: Chemical Formulas and Chemical Bonds

Assessment

Flashcard

Science

7th Grade

Hard

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15 questions

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1.

FLASHCARD QUESTION

Front

What is a covalent bond?

Back

A covalent bond is a type of chemical bond formed when two nonmetals share electrons.

2.

FLASHCARD QUESTION

Front

How many atoms of carbon are in the formula C6H12O6?

Back

There are 6 atoms of carbon in C6H12O6.

3.

FLASHCARD QUESTION

Front

What holds the atoms in a molecule together?

Back

Atoms in a molecule are held together by chemical bonds.

4.

FLASHCARD QUESTION

Front

What is a compound? Give an example.

Back

A compound is a substance formed when two or more different elements are chemically bonded together. Example: CO2 (carbon dioxide).

5.

FLASHCARD QUESTION

Front

Identify the type of bond in NO2.

Back

NO2 has a covalent bond.

6.

FLASHCARD QUESTION

Front

What is the difference between ionic and covalent bonds?

Back

Ionic bonds involve the transfer of electrons between a metal and a nonmetal, while covalent bonds involve the sharing of electrons between nonmetals.

7.

FLASHCARD QUESTION

Front

What is the chemical formula for water?

Back

The chemical formula for water is H2O.

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