Balance, Predict, % Comp, Empirical Form.

Organize these options into the right Chemical Reaction Categories

Groups:

(a) Single Replacement

,

(b) Synthesis

,

(c) Double Replacement

,

(d) Combustion

• 
• 
• CH4 + O2 --> CO2 + H2O

• 
• 2H2 + O2 --> 2H2O

• HCl + Br2 --> HBr + Cl2

• Si(OH)4 + NaBr --> SiBr4 +NaOH

• 

Tags

NGSS.MS-PS1-5

NGSS.MS-PS1-2

NGSS.MS-PS1-1

Add a coefficient to balance

PCl₅ + ​ (a)   H₂O ---> ​ (b)   HCl + H₃PO₄

• 4
• 5
• 6
• 10
• 1
• 2

What coefficients should be added to balance the equation?

• None, it's already balanced.

• 2Mg

• 2O₂

• 2Mg AND 2O₂

Tags

NGSS.MS-PS1-5

Decide which coefficients should go in front of Al₂O₃ and O₂ in order to balance the equation.

• 2Al₂O₃ and 2O₂

• 2Al₂O₃ and 3O₂

• 4Al₂O₃ and 2O₂

Tags

NGSS.MS-PS1-5

Which of the following are evidence of a Chemical Change?

• color change

• bubbling

• precipitate forms

• energy change

• melting

Tags

NGSS.MS-PS1-2

In a reaction, Barium Chloride reacts with Potassium Carbonate to produce Barium Carbonate and Potassium Chloride. Determine the solubility of each product. Which answer choice correctly states one of the products?

• BaCl₂ (aq)

• KCl (s)

• BaCO₃ (s)

• K₂CO₃ (aq)

• BaCO₃ (aq)

Predict the products for this substance: Al₂O₃ → ? + ?

• Al + O₂

• O₂ + Al₃

• Al₂ + O₃

• Al + O

• Al₃ + O

Tags

NGSS.MS-PS1-5

NGSS.MS-PS1-2

Write the products (include states of matter) for this Double Replacement reaction.

NaOH + Fe(NO₃)₃ -->

Don't worry about balancing.

(a)  

Fill in the missing Coefficient and the state of matter.

Pb(NO₃)₂ ​ (a)   + ​ ​ (b)   KI  → 2KNO3  + PbI₂​ (c)  

• 3
• (aq)
• 2
• (s)
• (l)

​ (a)   Ca₃N₂ + ​ (b)   Na → ​ (c)   Na₃N + ​ (d)   Ca

• 3
• 2
• 6
• 1
• 4
• 5

Tags

NGSS.MS-PS1-5

NGSS.MS-PS1-2

NGSS.MS-PS1-1