Writing Chemical Equations from Word equations

Multiple Choice

Which of the following is evidence that a chemical change has taken place? 

• change in color
• change in size
• change in shape
• change in energy

Multiple Choice

Which is NOT a diatomic molecule?

• Fluorine
• Nitrogen
• Boron
• Bromine

Multiple Choice

How many oxygen atoms are present in the following? 
4Ca(OH)₂

• 4
• 6
• 8
• 1

Multiple Choice

When a CHEMICAL reaction occurs, what is made?

• No new substance is made.
• A new substance is made with new atoms formed
• A new substance is made, with existing atoms rearranged
• All substances remain the same, but physical state may change.

Multiple Choice

When dry ice (solid carbon dioxide) sublimes, it goes directly from a solid to a gas. What type of change is occurring? 

• Chemical change
• Physical change
• None of the above 

Multiple Choice

Translate the word equation below:

Sodium reacts with chlorine to produce sodium chloride.

• NaCl(s) → Cl(g) + Na(s)
• Na(s) + CO₂(g) → NaCO₂(s)
• 2Na(s) + Cl₂(g) → 2NaCl(s)
• Na(s) + Cl(g) → NaCl

Multiple Choice

Translate the word equation below:

Iron reacts with sulfur to produce iron(II) sulfide powder.

• 2Fe(s) + S(s) → Fe₂S(s)
• Fe(s) + S(s) → FeS(s)
• Fe(s) + S(g) → FeS(s)
• 4Fe(s) + S₂(g) → 2Fe₂S

Multiple Choice

Translate the word equation below:

Magnesium can be burned in air to produce solid magnesium oxide.

• 2Mg(s) + O₂(g)→ 2MgO(s)
• Mg(s) + O(g) → MgO(s)
• 2Mg(s) + CO₂(g) → 2MgO(s) + C(s)
• 2Mg(s) + O₂(g) → Mg₂O₂(s)

Multiple Choice

Translate the word equation below:

When lead reacts with oxygen, a yellow lead(II) oxide powder is produced.

• 2Pb(s) + O₂(g) → 2PbO(s)
• Pb(s) + O₂(g) → PbO₂(aq)
• 4Pb(s) + O₂(g) → 2Pb₂O(g)
• Pb(s) + O(g) → PbO(s)

Multiple Choice

Translate the word equation below:

Nitrogen reacts with Hydrogen to form Ammonia (NH₃).

• $$N_{\left(g\right)}\ \ \rightarrow\ H_{\left(g\right)}\ +\ NH_{3\left(g\right)}$$
  

• $$N_2\ _{\left(g\right)}+\ H_{2\left(g\right)}\ \rightarrow\ NH_{3\left(g\right)}$$

• $$N_{\left(g\right)}\ +\ H_{\left(g\right)}\ \rightarrow\ NH_{3\left(g\right)}$$

• $$N_{2\left(g\right)}\ \rightarrow\ H_{2_{\left(g\right)}}\ +\ NH_{3\left(g\right)}$$

Multiple Choice

Translate the word equation below:

When hydrogen reacts with sulfur, a smelly gas is produced:

• H₂(g) + 2S(s) → 2HS
• H₂(g) + S(s) → H₂S(g)
• H(g) + S(s) → HS(g)
• 2H(g) + S(s) → H₂S(g)

Multiple Choice

Which is the correct chemical equation for the following: Barium Chloride combined with sodium sulfide yields barium sulfide and sodium chloride

• BaCl + NaS → BaS+ NaCl

• BaCl₂ + Na₂S → BaS+ NaCl

• BaS+ NaCl → BaCl + NaS

• BaCl₂ + Na₂S → BaS+ NaCl₂

Multiple Choice

Which is NOT a diatomic molecule?

• Fluorine
• Nitrogen
• Boron
• Bromine

Match

Match the symbol to the correct word.

• g

• aq

• s

• l

• →

Gas

Aqueous

Solid

Liquid

Yields

• Gas

• Aqueous

• Solid

• Liquid

• Yields

Drag and Drop

In a chemical equation, "aq" means ​

Placeholder

. This word means "dissolved in water". The compound or element has been put into water to form a solution ​or homogenous mixture. "l" means ​

Placeholder

. this means the compound or element is in the liquid phase. It has not been mixed with anything else. The arrow in a chemical equation means ​

Placeholder

. On the left side of the arrow are the ​

Placeholder

, and on the right side of the arrow are the ​​

Placeholder

.

Drag these tiles and drop them in the correct blank above

Aqueous

liquid

yields

reactants

products