Chemical Reactants, Products, and Synthesis

In the chemical reaction 2H₂ + O₂ → 2H₂O, what are the reactants?

• H₂O

• H₂ and O₂

• O₂ and H₂O

• 2H₂O

Tags

NGSS.MS-PS1-1

In the synthesis reaction 2Na + Cl₂ → 2NaCl, what is the product?

• Na

• Cl₂

• NaCl

• 2Na + Cl₂

Tags

NGSS.MS-PS1-1

Balance the following chemical equation: C₃H₈ + O₂ → CO₂ + H₂O. What is the coefficient for O₂ when the equation is balanced?

• 3

• 4

• 5

• 6

Tags

NGSS.MS-PS1-5

Which of the following is a synthesis reaction?

• 2KClO₃ → 2KCl + 3O₂

• CaO + H₂O → Ca(OH)₂

• 2Na + 2H₂O → 2NaOH + H₂

• H₂ + Cl₂ → 2HCl

In the reaction 2Fe + 3Cl₂ → 2FeCl₃, what are the products?

• Fe and Cl₂

• FeCl₂

• FeCl₃

• 2Fe and 3Cl₂

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-2

How many molecules of H₂O are produced when the equation 2H₂ + O₂ → 2H₂O is balanced?

• 1

• 2

• 3

• 4

Tags

NGSS.MS-PS1-5

Identify the reactants in the synthesis reaction N₂ + 3H₂ → 2NH₃.

• NH₃

• N₂ and H₂

• N₂ and NH₃

• H₂ and NH₃

In the balanced chemical equation 2SO₂ + O₂ → 2SO₃, what is the coefficient for SO₃?

• 1

• 2

• 3

• 4

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which of the following is not a synthesis reaction?

• 2Na + Cl₂ → 2NaCl

• S + O₂ → SO₂

• 2H₂O → 2H₂ + O₂

• 4Fe + 3O₂ → 2Fe₂O₃

Tags

NGSS.MS-PS1-2

Balance the chemical equation: Al + O₂ → Al₂O₃. What is the coefficient for Al when the equation is balanced?

• 2

• 4

• 6

• 8

Tags

NGSS.MS-PS1-5