Significant Figures
How many sig figs?
122 g
3
What is the molar mass of SO2?
64.06 g/mol SO2
What is the atomic number of Bromine?
35
What is the oxidation number of calcium?
+2
What is the formula of sodium chloride?
NaCl
How many sig figs?
0.0067 mL
2
Convert 4.9 x 1025 molecules of carbon tetrafluoride into moles.
81 moles CF4
What are the 3 subatomic particles?
Proton, neutron, electron
What is the oxidation number of oxygen?
-2
What is the name of CCl4?
Carbon tetrachloride
How many sig figs?
20007 cm
5
Convert 27.3 g of potassium hydroxide into moles
0.487 mol KOH
How many neutrons are in Cl- 35?
18 neutrons
What is the oxidation number of copper in the following compound?
CuCl2
+2
What is the formula for pentaphosphorus mononitride
P5N
3.123 cm x 0.12 cm
0.37 cm2
What is the mass of 3.49 x 1023 molecules of sulfur dioxide?
37.1 g
What is the charge of a neutron?
Neutral- no charge
Is this an ionic or covalent bond?
CuCl2
Ionic
What is the name of the following compound?
SnSe
Tin (II) selenide
1.28 mL + 52.2 mL + 3.09 mL
56.6 mL
2H2+O2 -> 2H2O
How many moles of H2O are produced from 4 moles of O2, and an excess of H2?
8 moles H2O
Isotopes
Is this an ionic or covalent bond?
CaCO3
Ionic
Calcium carbonate
What is the name of the following compound?
PbClO3
Lead (I) Chlorate