Chem Quiz 2 Flashcards
What does an acid decompose into?
A non-metal oxide and water.
What does a base decompose into?
A metal-oxide and water.
What does a metal hydroxide decompose into?
A metal oxide and water.
What does a metal nitrate decompose into?
A metal nitrite and oxygen.
What does a metal carbonate decompose into?
a metal oxide and CO2
What are the products of a metal and water?
metal hydroxide (aq) and hydrogen gas.
What does NH4OH decompose into?
NH3 and H2O
What does carbonic acid decompose into?
CO2 and water
acid + hydroxide ion
includes water
aqueous salt x2
includes precipitate
acid + carbonate ion
water and CO2
When is H2O not liquid?
During combustion
What state are ionic compounds?
Solid unless they are dissolved or if there is H20 or a solution on the left side. In that case, check the solubility table.
What covalent compounds are always gases?
Ammonia gas and nonmetal oxides (CO2, SO3, NO2, etc)
What is a salt
an ionic compound
What polyatomic ions are bases?
bicarbonate, hydroxide, and carbonate.
What makes a precipitation reaction?
2 aq salts.
What is produced from neutralization reactions?
water and a salt
Acid + base
Water and a salt
In terms of solubility, alkali metals are …
automatically soluble.
What determines an acid?
H or NH4 on left side.
How does one determine the state of an element?
Look at the periodic table.
How does one know the reactivity of the halogens?
They become less reactive as you go down the group.
What are the products of combustion?
Water and carbon dioxide.
What are the 2 unstable compounds we have to know?
NH4OH and H2CO3.
What 2 elements are liquid at room temperature?
Br and Hg.
What is the equation for incomplete combustion?
hydrocarbon + oxygen→carbon monoxide+carbon+water
