Balancing
Equations
Equations
Pb(OH)2 + HCl ➡️ H20 + PbCl2
1, 2, 2, 1
What is the formula for chromium (2) chloride?
CrCl2
Everything to the right of the periodic table becomes more electro negative except for...
Noble gases
What is the smallest unit of matter?
The atom
S8 + O2 ➡️ SO3
1, 12, 8
What is the formula for Beryllium chloride
BeCl2
What does middle area of the periodic table consist of?
Transition metals
How many atoms are in 2.5 mols of silicon
15.05 * 10^23
P + O2 ➡️ P2O5
4, 5, 2
What is P2O
Phosphorus oxide
Where are noble gases found?
At the last row on the right
What is the mass of 4 moles of iron
224 grams
CH4 + O2 ➡️ CO2 + H2O
1, 2, 1, 2
What is the formula for calcium phosphate
Ca(PO4)2
Are the elements at the top more electro negative or at the bottom?
Bottom
How many atoms are in 48.6g of Mg
12.04 * 10^23 atoms
C8H18 + O2 ➡️ CO2 + H20
2, 25, 16, 18
What is Zn3(PO4)2
Zinc phosphate
How many grams are in 18.06 * 10^23 atoms of Copper
190.5 grams