Chem I Exam Review1. What is the difference between a compound and an element?2.Which state of matter has a definite volume and takes the shape of its container?3. Which state ofmatter has an indefinite volume and shape? : Chem I Exam Review1. What is the difference between a compound and an element?2.Which state of matter has a definite volume and takes the shape of its container?3. Which state ofmatter has an indefinite volume and shape?
Slide 2 : 4.What do you call the starting materials in a chemical reaction?
5. What is a homogeneous mixture?
Law of Conservation:
14g of reactant A and reactant B gives 35g of product. How much reactant B was used?
Slide 3 : What is the difference between accuracy and precision?
What is the difference between qualitative and quantitative?
How many sig figs in .0020
3.210
30
Slide 4 : Answer in correct sig figs:
14.5 + 20=
7.40 + 10.256
4.0 x 7
13.2 x 2.3
Slide 5 : 1g= cg
1g= ng
1g= Ug
1g= mg
1kg= g
1g = dg
Slide 6 : If the mass of an object is 24g and ot’s density is 3.0g/cm^3 . Then what is it’s volume?
What is the mass, charge and position of
Protons
Neutrons
electrons
Slide 7 : What is the temperature of absolute zero?
What are the parts of Dalton’s atomic theory?
What did Rutherford find out about an atom in the gold foil experiment?
Slide 8 : How many protons, neutrons and electrons are in F-19?
1 amu =
What are the characteristics of a metal?
Slide 9 : What are the characteristics of a nonmetal?
What are isotopes?
How many electrons are in Ca2+
S2-
Slide 10 : What is the ion charge for each group on the periodic table?
What is the charge of copper in CuCl2
What is the formula for ammonium sulfate?
Slide 11 : FeCl3
Li2O
N2O5
HCl
Na2 SO4
NH4F
Al(OH)3
MgS
CuBr2
CCl4
Slide 12 : What are the prefixes 1-10 used in naming molecular compounds?
How many grams are in .5 moles of CaCl2?
How many moles are there in 88g of CO2?
Slide 13 : How many molecules are there in .5 mole of N2?
How many moles are there in 1.2 x 1024 atoms of Cu?
How many moles are in 44.8L of He?
Slide 14 : How many Liters are in 2.5 moles of CO2?
What is the % composition of H in H2O?
What is the empirical formula if 50g of S and 50g of Oxygen combine to make a compound?
Slide 15 : What is the formula for lead(IV) oxide.
Write a decomposition reaction for lead(IV) oxide, and balance it.