Chemistry chapter 11

Synthesis Reactions

2 or more simple compounds combine to create a single complicated compound. ex: A + B = AB

Balance. AgNO3 + H2S ---> Ag2S + HNO3

2AgNO3 +H2S ---> AG2S + 2HNO3

Balance . Iron (III) Chloride + Calcium Hydroxide ---> Iron(III) Hydroxide + Calcium Chloride

2FeCl3 + 3Ca(OH)2 ---> 2Fe(OH)3 + 3CaCl2

Decomposition Reactions

A complex molecule breaks down into simple ones ex: AB= A + B

Acid-Base Reactions

An acid reacts with a base, usually with products water and ionic salts

Double Displacement Reactions

Anions and cations of 2 different molecules switch places, creating 2 new compounds ex: AB + CD --> AD + CB

How did John Dalton explain Chemical reactions using his theory?

He said that atoms were rearranged to create products

Single Displacement Reactions

One element switches places with another in a compound. ex: A + BC = B + AC

Combustion Reactions

Oxygen combines with a compound to form water and carbon dioxide. Exothermic

Sulfur burns in oxygen to form sulfur dioxide. Write a skeleton equation for this reaction. Include appropriate symbols.

S(g) + O2(g) ---> SO2(g)

Write a sentence that describes this chemical reaction: Na(s) + H2O(l) ---> NaOH(aq) + H2(g)

Sodium metal and Liquid water react to create Sodium Hydroxide and Hydrogen gas