Question

1. create the generalized reaction for each reaction type by dragging substances into the appropriate spaces.

• drag the blank into the box if a reaction does not have two reactants or two products.
• every reaction except combustion should include a b as either a reactant or product.

i need a hint
reaction type description generalized equation
combination two simple substances, often elements, react to form a single compound. ? + ? → ? + ?
decomposition a single compound reacts to form two or more simpler substances. ? + ? → ? + ?
single replacement a single element replaces a similar element in a compound. ? + metal → ? + metal show a metal replacing a metal.
double replacement the two cations in two ionic compounds trade places. ? + ? → ? + ?
combustion a substance reacts with oxygen. ? + ? → ? + ?

Explanation:

Step1: Write combination reaction

$A + B
ightarrow AB$

Step2: Write decomposition reaction

$AB
ightarrow A + B$

Step3: Write single - replacement reaction (metal - metal)

$A+BC
ightarrow AC + B$ (where A and B are metals)

Step4: Write double - replacement reaction

$AB + CD
ightarrow AD+CB$

Step5: Write combustion reaction

$C_xH_y + O_2
ightarrow CO_2+H_2O$

Answer:

Combination: $A + B
ightarrow AB$
Decomposition: $AB
ightarrow A + B$
Single Replacement: $A+BC
ightarrow AC + B$
Double Replacement: $AB + CD
ightarrow AD+CB$
Combustion: $C_xH_y + O_2
ightarrow CO_2+H_2O$