How is a synthesis reaction different from a decomposition reaction (use your notes)?

Q Of The Day Day 6 5-9

YOU MUST BE WORKING ON CHEMISTRY!!!

MAKE UP Day 6 5-9

Balance the equation above.

ZnS + O2 ZnO + SO2

2ZnS + 3O2 2ZnO + 2SO2

5-12 Day 5

Types of Chemical EquationsDouble-replacement ReactionsDouble-replacement reactions – the ions of 2 cmpds. exchange places in an aqueous sltn. to form 2 new cmpds.

AX + BY AY + BX

A, B, X, and Y = ions

Example:

2KI(aq) + Pb(NO3)2(aq) PbI2(s) + 2KNO3(aq)

AX BY BX AY

+ - + - + - + -

Types of Chemical EquationsDouble-replacement Reactions

In the margin: double reps. can form

precipitates most acid-base reactions are

double resp.

What type of reaction is:

AX + BY → AY + BX

compound

compound

compoundcompound

What type of reaction is:

X + BY → Y + BX

element

compound

elementcompound

What type of reaction is:

X + BY → BYX

element

compound

compound

What type of reaction is:

X + Y → XY

element

element

compound

What type of reaction is:

X + BY → Y + BX

element

compound

elementcompound

What type of reaction is:

BY → Y + B

compoundelement

element

Aqueous

Decomposition

Coefficient

Bonds

Single replacement

Reactants

Synthesis

Chemical reaction

Double replacement

Products

How is a double replacement reaction different than a single replacement reaction (USE NOTES)?

Q Of The Day Day 6 5-13

How does the Law of Conservation of Matter apply to chemical reactions?

How do substances react to form products?

H2(g) + F2(g) 2HF(g)

What type of reaction is:

What type of reaction is:

NaBr + Cl2 NaCl + Br22 2

Types of Chemical EquationsCombustion ReactionsCombustion reactions – a substance combines with oxygen, releasing a large amount of energy (light or heat)

Unique equations

Examples:

Hydrogen gas: 2H2(g) + O2(g) 2H2O(g)

Propane: C3H8(g) + 5O2(g) 3CO2(g) + 4H2O(g)

Review section 11.2 AND complete #s 13 on page 35920-22 (skip parts a and d for # 21) and 24 on page 367

Day 6 5-13

Neutralization reactions – reaction between an _____ and a _____ - produce a ____ (ionic compound) and water - pH is ____________ - moves toward __

Types of Chemical EquationsNeutralization Reactions

acid base

salt

neutralized7

Example: HCl + NaOH ____________

Example: H2SO4 + Ba(OH)2 _________

Types of Chemical EquationsNeutralization Reactions

Balance each of the following chemical reactions AND explain what type of reaction it is:

a. H2(g) + O2(g) H2O(l)

WOOSH Day 4 5-2

2 2 Synthesis

&

Combustion

http://education.jlab.org/elementbalancing/index.html

http://www.files.chem.vt.edu/RVGS/ACT/notes/scripts/bal_eq1.html

http://www.sciencegeek.net/Chemistry/taters/EquationBalancing.htm - bonus

http://education.jlab.org/elementbalancing/index.html

http://www.files.chem.vt.edu/RVGS/ACT/notes/scripts/bal_eq1.html

http://www.sciencegeek.net/Chemistry/taters/EquationBalancing.htm - bonus