level 1
what is a state of matter
One of the four principal conditions in which matter exists—solid, liquid, gas, and plasma. See also phase.
what is a solid
a substance which exists in the solid-state, which is one of the four fundamental states of matter.
what is a liquid
a nearly incompressible fluid that conforms to the shape of its container but retains a nearly constant volume independent of pressure.
what is a gas
a substance that is in a gaseous, or vaporous, state of matter.
Calculate the molar mass of Ca(N03)2
164.086
define limiting reactant
reactant in a chemical reaction that determines the amount of product that is formed.
define excess reactant
substance that is not wholly consumed or entirely reacted in a chemical reaction.
what is used to convert between moles and grams of the same substance
molar mass
what is used to convert between moles of one substance to moles of another substance
mole ratio
how do I determine a mole ratio
by the coefficients
calculate molar mass of Ba(Mn04)
375.196 g/mol
The limiting reagent in a chemical reaction is one that...
is consumed completely
How many moles of hyrdrogen are required to produce 15.0 mol of methane (CH4)
C+2H2 > Ch4
30 mol H2
If 29,48 grams of Na are reacted with fluorine, how many moles of NaF are produced
2Na+f2 > NaF
1.28 mol NaF
what is the molar mass of Zn(NO3)2
189.388 g/mol
what is the difference between a solid, a liquid, and a gas at the molecular level
gas are well separated with no regular arrangement. liquid are close together with no regular arrangement. solid are tightly packed, usually in a regular pattern.
How does temperature affect state of matter
As the temperature of a solid, liquid or gas increases, the particles move more rapidly. As the temperature falls, the particles slow down.
The elements Lithium and oxygen react explosively to form lithium oxide, Li20. How many grams of lithium oxide will form if 2 moles of lithium react. (MM: Li=6.94g/mol; O2= 32.99g/mol; Li2O=29.88 g/mol
7.47 g LiO
Calculate the molar mass of of Zn(NO3)2
243.084g/mol
limitng reactant of 2AI(OH)3 + 3 H2 SO4 >Al2(SO4)3 + 6 H20
H2 SO4 sulfuric acid
Given the reaction 4NH3 (g) + 5 )2 (g) > 2NO (G) +6H20
when 1.20 mole of ammonia reacts the total numbers of moles of water is formed is?
1.8 mol Ho
how many grams of CO2 willl be produced if you start with 14.8 g of C3H8 and 3.44g of O2? (MM: C3H8= 44.01 g/mol= O2 =32 g/mol CO2 44g/mol H20 18.02
44.38 g CO2
When sodium azide is activated in an automobile airbag, nitrogen gas and sodium are produced. If 0.5 mol of NaN3 react, what mass ( ingrams) of nitrogen would be produced (MM: NaN3= 65.02g/mol; Na= 22.99g/mol; N2 28.02g/mol
2NaN3> 2Na + 3N2
21.015 g n2
how many moles of 02 should be supplied to burn 1 mol of C3H8( propane) molecules in a camping stove? (think combustion)
5 mol 02
When sodium chloride reacts with silver nitrate, silver chloride precipitates. How many moles od AgCi are produced from 75 grams of AgNo3? (MM: AgNO3= 168.888 g/mol; NaCi=58.44 g/mol ; NaNo= 85 g/mol; AgC = 143.32 g/mol)
NaCI + AgNO3 > AgCI + NaNO3
0.4414 mol agCI