What are positive ions called? What are negative ions?
Cation and Anion
This is the molar mass of Carbon.
What is 12.01 g?
What is the mole ratio of Hydrogen to Ammonia: N2+ 3H2 → 2NH3
3:2
____ KClO3 ⮴ ____ KCl + ____ O2
2,2,3
What class of elements are involved in covalent bonding?
Nonmetals
Elements of metals tend to (gain/lose) electrons.
Elements of nonmetals tend to (gain/lose) electrons.
Lose.......Gain
The amount of moles of in 400g of Hg.
What is 2 mols Hg?
How many moles of aluminum are needed to form 1.6 mol Al2O3? 4Al + 3O2 → 2Al2O3
3.2 moles of Al
____ C8H18 + ____ O2 ⮴ ____ CO2 + ____ H2O
2,17,16,18
How many electrons are involved in a triple bond?
6
Draw the electron dot diagram for Al, S, Sr
Answer on the board
20.18g of Neon is this many moles.
What is 1 mole?
How many moles of Cr are needed to react with 45.6 g of O2? 4Cr + 3O2 → 2Cr2O3
1.9 moles
____ S8 + ____O2 ⮴ ____ SO3
3,12,8
Ionic bonds (give/share) electrons, and covalent bonds (give/share) electrons.
Give.......Share
Combine elements Al and Br
AlBr3
What is the molar mass of CCl4
154g/mol
Calculate the grams of oxygen required to react with 10.0 g of iron? 4Fe + 3O2 → 2Fe2O3
4.29
____ K + ____ MgBr ⮴ ____ KBr + ____ Mg
1,1,1,1
Bond the compound O2
Draw on the board
Combine elements Ca and O
CaO
One mole is equal to this.
What is 6.022 x 1023?
In the equation; ____Al2O3 --> ____Al + ____ O2 What is the number of grams of Al2O3 which decompose if 81 grams of Al react with oxygen gas?
What is 153 grams Al2O3?
____ H2O + ____ O2 ⮴ ____ H2O2
2,1,2
Bond the compound PF3
Draw on the board