Chemical Formulas

Question 1

A representation of a substance using symbols for its elements

Answer 1

Chemical Formula

Question 2

A shorthand way to represent an element or compound

Answer 2

Chemical Formula

Question 3

H2O

Answer 3

Water

Question 4

C6H12O6

Answer 4

Sugar

Question 5

NaCl

Answer 5

Salt

Question 6

Located on the Periodic Table of Elements

Answer 6

Elements

Question 7

Elements on the Periodic Table are Represented by ______________ letters

Answer 7

Capital

Question 8

On the periodic table, each element contains how many letter symbols

Answer 8

1 or 2

Question 9

The first letter of the element is capitalized and the second letter is ___________________

Answer 9

lower case

Question 10

What is the chemical Formula for Rust

Answer 10

Fe2O3

Question 11

How many elements are in 2HCO3

Answer 11

3

Question 12

How many elements are in 6O2

Answer 12

1

Question 13

How many elements are in 3NaC2H3O2

Answer 13

4

Question 14

How many elements are in 4CO2

Answer 14

2

Question 15

Molecules are represented by a _________________ - a number written in ___________ of the chemical formula

Answer 15

Coefficient, front

Question 16

Located at the _________________ of a chemical formula

Answer 16

Beginning

Question 17

If there is no coefficient at the beginning of a chemical formula, then there is just _______ molecule

Answer 17

1

Question 18

How many molecules are in
3Fe2O3

Answer 18

3

Question 19

Chemical formula for Rust (iron oxide)

Answer 19

3Fe2O3

Question 20

Identify the number of molecules in
2HCO3

Answer 20

2

Question 21

How many molecules in
6O2

Answer 21

6

Question 22

How many molecules in
3NaC2H3O2

Answer 22

3

Question 23

How many molecules in
4CO2

Answer 23

4

Question 24

Represented by a __________________________ - a number written after the symbol of each element

Answer 24

Subscript

Question 25

If there is no subscript after an element's symbol, then there is just _________ atom of the specific element

Answer 25

1

Question 26

_______ the atoms of each element in the chemical formula

Answer 26

Add

Question 27

___________ the number of atoms by the _______________ to determine the TOTAL number of atoms in the chemical formula

Answer 27

Multiply, coefficient

Question 28

How many atoms are in 2HCO3

Answer 28

10

Question 29

How many atoms are in 6O2

Answer 29

12

Question 30

How many atoms are in 3NaC2H3O2

Answer 30

24

Question 31

How many atoms are in 4CO2

Answer 31

12

Question 32

How many MOLECULES are in the chemical formula for Butane: 5C4H10

Answer 32

5

Question 33

How many ELEMENTS are in the chemical formula for Calcium Sulfate: 3CaSO4

Answer 33

3

Question 34

How many ATOMS are in the chemical formula for Potassium Chromate: 4K2CrO4

Answer 34

28

Question 35

How many MOLECULES, ELEMENTS, AND ATOMS are in the chemical formula for Glucose: C6H12O6

Answer 35

Molecules: 1 Elements: 3 Atoms: 24