The Mole
What is Avagadro's Number
6.02 x 1023
What is the name of FeCl₃?
FeCl₃ – Iron(III) chloride
Na2CO3 -> Na2O + CO2
If .50g CO2 is produced, how many grams of Na2CO3 were consumed?
1.2g Na2CO3
What is atomic radius?
The distance from the nucleus to the outermost electron.
What kind of reaction is this, and predict the outcome:
Zn + CuCl2 -> ?
Single Replacement
ZnCl2 + Cl2
What is the molar mass of Ba3(PO4)2?
601.93g/mol
Is potassium sulfate a covalent compound or an ionic compound?
Ionic compound
6Ca + P4 -> 2Ca3P2
100.0 g of P4 and 200.0 g of Ca react. How many grams of Ca3P2 are produced?
294.1 g Ca3P2
Which element has the largest atomic radius: Na or Cl?
Na
What kind of reaction is this, and predict the outcome:
AgNO3 + NaCl -> ?
Double Replacement
AgCl + NaNO3
What volume in L of oxygen gas is equal to 3.42 x 1022 molecules?
1.27L O2
What is an ionic bond?
An ionic bond is a type of chemical bond formed through the complete transfer of valence electrons between atoms, resulting in the formation of oppositely charged ions.
P2O5 + 3H2O -> 2H3PO4
If 2.0g of P2O5 and .55g of H2O are used, how many grams of H3PO4 are produced?
2.0g H3PO4
Which type of element—metal, nonmetal, or metalloid—typically has the lowest ionization energy and why?
Metal, because they have fewer valence electrons and a larger atomic radius, making it easier to lose electrons.
This type of reaction occurs when silver nitrate and sodium chloride are mixed, forming silver chloride and sodium nitrate:
Double Replacement
What is the percent of each element in (NH4)2(SO4)?
N: 21.20%
H: 6.10%
S: 24.25%
O: 48.44%
What if ammonia reacts with water to form a new compound? What’s the new compound name?
The resulting solution is aqueous ammonium hydroxide, which is an ionic compound.
NaCl + K -> KCl + Na
If 13g of NaCl and 12g of K are used, what's the excess reactant and how many moles are left once the reaction is completed?
K and .09 mol K
Rank by decreasing electronegativity: Cl, Br, I
Cl>Br>I
In a double replacement reaction, a solid product that forms is known as this:
Percipitate
What is the molecular formula for a compound that is 26.37% C, 5.541% H, 52.70% O, 15.38% N, and has a molar mass of 182.16g?
C4H10N2O6
When the iron is oxidized in the air, what is the new compound? What compound does the compound belong to?
When iron is oxidized in the air, it forms iron(III) oxide, commonly known as rust.
4Fe+3O2 ---> 2Fe2O3
Chemical formula: Fe₂O₃
Compound type: Ionic compound
MgO + 2HCl -> MgCl2 + H2O
If 10.0g of MgCl2 are produced, how many grams of reactant are used?
11.89 grams
Rank by increasing ionic radius: Mg²⁺, Na⁺, Al³⁺
Al³⁺ < Mg²⁺ < Na⁺
In a single replacement reaction, this table is used to determine whether the reaction will happen:
The Activity Series