Periodic Table
Grams to Mols
Mols to Grams
Mols to Grams
Calculations: Temperature and molar mass
Scientific Notation
Protons, Neutrons, Electrons
Protons, Neutrons, Electrons
Chemical and Physical properties and changes
100
What is the atomic number and symbol for Tungsten?
Atomic Number: 74
Symbol: W
100
How many moles are in 15 grams of lithium?
2.14 moles
100
What is 95 F in Celsius?
35 C
100
What is the charge for electrons?
Negative Charge
100
What does Endothermic and Exothermic mean?
Endothermic- absorbs heat
Exothermic- release heat
200
What element is located in Group 10 and Period 6?
Platinum
200
How many grams are in 2.4 moles of sulfur?
76.8 grams
200
What is 180 C in Fahrenheit?
356 F
200
How many elements are in the compound NaOH?
Three: Sodium, Oxygen and Hydrogen
200
Match the particle motion with Solid , Liquid and Gas
First picture : Solid
Second picture: Liquid
Third picture: Gas
300
What are the three categories are the elements broken in to?
Metals
Nonmetals
Metalloids
300
How many moles are in 22 grams of argon?
.55 moles
300
What is the molar mass of NaCl?
22.99+35.45= 58.44 g/mol
300
How many atoms are in h2SO4?
7 atoms
300
What is Solubility?
the ability of a substance to dissolve
400
How many Groups and Periods are on the Periodic Table?
Groups: 18
Periods: 7
400
How many grams are in 4.5 moles of sodium fluoride, NaF?
189 grams
400
Molar Mass for MgCl2
24.305+2(35.45)= 95.205 g/mol
400
Write the following in Scientific Notation:
a. 4523000
b. 6750.
a. 4.523 x 10^6
b. 6.750 x 10^3
400
What is a graduated cylinder used for?
To measure volume
500
How are the elements arranged on the periodic table and how many total elements are there?
Elements are arranged by atomic number and there are 118 elements on the periodic table
500
How many moles are in 98.3 grams of aluminum hydroxide, Al(OH)3?
1.26 Moles
500
Molar Mass Mn2Se7
2(54.938)+7(78.971)= 662.673
500
Write the following numbers in standard notation:
a. 4.6978 x 10^4
b. 8.8 x 10^2
a. 46978
b. 880
500
What is the difference between chemical and physical changes?
Physical changes do not create a new substance, while chemical changes always do.