Chemical Equations and Types of Reactions - Form A

In this equation A + B -> C

which are the reactant(s)?

• A only

• C only

• A + B

• B only

Tags

NGSS.MS-PS1-2

Use the activity series to predict which reaction will happen

(hint: the element by itself should be above the one it is replacing)

• NaCl + I₂ →

• LiF + Cl₂ →

• KBr + F₂ →

• NaBr + I₂ →

In a chemical equation, (aq) after one of the substances means that it is which of these?

• dissolved in water

• released as gas

• produced from nothing

• a solid formed from two ionic substances

Which type of reaction can be recognized by the general pattern A + BX → AX + B?

• synthesis

• single replacement

• combustion

• decomposition

Which type of reaction takes place in the presence of oxygen and produces carbon dioxide and water?

• synthesis

• double replacement

• combustion

• decomposition

Tags

NGSS.HS-PS1-7

Which type of reaction is 4Pb + 3O₂ → 2Pb₂O₃?

• combustion

• decomposition

• synthesis

• single replacement

What are the correct coefficients when this equation is balanced? Sb + O₂ → Sb₄O₆

• 4, 6, 1

• 1, 2, 10

• 4, 3, 1

• 10, 5, 1

Tags

NGSS.HS-PS1-7

Which type of reaction is SnO₂ + 4HCl → SnCl₄ + 2H₂O?

• double replacement

• combustion

• synthesis

• single replacement

Which is the product(s) of this reaction? Mg _(s) + O₂ _(g) →

• MgO₂ _(s)

• Mg₂O₂ _(s)

• MgO _(s)

• Mg₂O _(s)

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

What are the correct coefficients when this equation is balanced? Li + Br₂ → LiBr

• 2, 1, 1

• 1, 1, 1

• 2, 1, 2

• 1, 2, 1