Chemical Compound & Formulas Practice Quiz

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Take this quiz then view the results. Be sure to check over your mistakes so you are prepared for the actual quiz.

Name: *

1. A compound _________________________. *

1 point

is two or more elements chemically bonded to form a new substance

is a substance than cannot be broken down

is the basic building block of matter

is expressed using a chemical formula

is two or more elements physically mixed

can be in any state of matter depending on temperature

Required

2. Which of the following is a compound? *

1 point

CO2

H2O

Required

3. Which below fits the description of the picture below? *

1 point

atom

compound

molecule

element

Required

4. Look at the diagram of a Salt molecule below. The atoms of sodium and chlorine have formed a _________ and cannot be separated physically.

1 point

couple

attachement

chemical bond

connection

Clear selection

5. How many atoms are present in three (3) molecules of NaHCO3 (Baking Soda)?

1 point

Clear selection

6. How many different types of elements are found in the compound rubbing alcohol?

1 point

Clear selection

7. What would be the total mass (AMU) of one CO2 molecule? ( HINT: Find each atom's atomic mass then all then up!)

1 point

12 AMU

3 AMU

44 AMU

32 AMU

Clear selection

8. Chemical compounds are written using symbols and numbers and are expressed as ___. *

1 point

chemical formulas

chemical symbols

chemical recipes

chemical equations

9. How many atoms of phosphorus can you find in one molecule of aluminum phosphate? *

1 point

10. The small numbers written in chemical compounds represent the quantity of atoms of that element in the molecule. The small numbers are called ____________________. *

1 point

superscripts

coefficients

subscripts

subatomic particles

11. How many total Oxygen atoms could you find in two 2 molecules of CO2 (carbon Dioxide)

1 point

Clear selection

Which are true when the chemical compound's bonds are broken? *

1 point

the compound is destroyed

the original substances properties return

the compound is unaffected

matter is destroyed

Required

Which subatomic particle are responsibe for the chemical bonding between two (2) elements? *

1 point

protons

electrons

neutrons

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