Ch7 p02 Balancing Chemical Equations Classwork

For each of the following: Write how many of each element there are. 1) 3H2O

• H: 6, O: 3

• H: 3, O: 6

• H: 2, O: 3

• H: 3, O: 2

Tags

NGSS.MS-PS1-1

For each of the following: Write how many of each element there are. 2) 2H2SO4

Tags

NGSS.MS-PS1-1

For each of the following: Write how many of each element there are. 3) 2MgCl2

• Mg: 2, Cl: 4

• Mg: 1, Cl: 2

• Mg: 2, Cl: 2

• Mg: 4, Cl: 2

Tags

NGSS.MS-PS1-1

For each of the following: Write how many of each element there are. 4) 2H2O2 + 3HCl

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-5

Determine if each of the following is balanced or unbalanced. 5) 2Na + 2Cl2 → 2NaCl

• True (Balanced)

• False (Unbalanced)

Tags

NGSS.MS-PS1-5

Determine if each of the following is balanced or unbalanced. 6) 2NH3 + 6O2 → 2NO + 3H2O

• True (Balanced)

• False (Unbalanced)

Tags

NGSS.MS-PS1-5

Determine if each of the following is balanced or unbalanced. 7) C3H8 + 5O2 → 3CO2 + 4H2O

• True (Balanced)

• False (Unbalanced)

Tags

NGSS.MS-PS1-5

Determine if each of the following is balanced or unbalanced. 8) 4CO2 + H2O → 2C2H2 + 5O2

• True (Balanced)

• False (Unbalanced)

Tags

NGSS.MS-PS1-5

Balance each of the following chemical equations. 9) ____Na + ____I2 → ____NaI

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Balance each of the following chemical equations. 10) ____N2 + ____O2 → ____N2O

• 1N2 + 1O2 → 2N2O

• 2N2 + 1O2 → 2N2O

• 1N2 + 2O2 → 2N2O

• 2N2 + 2O2 → 2N2O

Tags

NGSS.MS-PS1-5