Name 3 examples of PPE we might use in this class.
Safety glasses, apron, gloves
Name an element and a compound
See Ms. Russell
Group/ Family
What is the CHARGE of a Nitrogen ion?
Is this a cation or anion?
-3
anion
Which reaction type is this....
A + B -> AB
Synthesis/ Addition/ Combination
What is my total mass of just the contents without the container?
159.5
Name the atom and atomic mass.
Beryllium
9 amu
This family has 7 valence electrons and are highly reactive...
What are the halogens?
What is the name of the following compounds?
H2O
NaOH
dihydrogen monoxide
sodium hydroxide
What is a decomposition reaction?
AB -> A + B
When you mix oil and water why does the water sink and oil float?
The water has a higher density
Name 1 heterogenous mixture and 1 homogenous mixture
see Ms. Russell
The most electronegative elements are on which side of the periodic table?
Top right
Draw the electron configuration for Calcium
1s22s22p63s23p64s2
Balance this reaction
__Na2O -> __Na + __O2
2Na2O -> 4Na + O2
A ball is found to mass of 20 g. It is placed in 200mL of water and it goes up to 228mL. What is the Density of the marble?
Make your answer 3 digits (0.111111 would be 0.11)
0.71
Density = Mass/Volume
How many protons, neutrons and electrons are present in Chlorine-36?
P 17
N 19
E 17
The biggest atoms or highest atomic radius is located where on the periodic table?
Bottom left
Draw the Lewis Dot Structure and Name the VSEPR shape of:
NH3
Trigonal Pyramidal
(see Ms. Russell for LDS)
Balance this reaction
__NaOH + __AlCl3 -> __Al(OH)3 + __NaCl
3NaOH + __AlCl3 -> __Al(OH)3 + 3NaCl
A chocolate bar measures 5.0 cm long, 5.25cm wide, and 3.30 cm in height. The bar alone has a Mass of 275 grams and contains 198 grams of fat!
Calculate the Density of this to 3 digits
3.17
Which two are examples of isotopes for Carbon?
C126 , C127 , C146 , C147
C126 , C146
Atoms with the same number of protons but different numbers of neutrons are called isotopes.
Which of the following has the highest ionization energy?
Li, B, N, F
F
Draw the Lewis Dot Structure for H2O and determine if it is polar or nonpolar
(see Ms. Russell for LDS)
polar
Name the type of Rxn and balance
CH4 + O2 -> H2O + CO2
Combustion
CH4 + 2O2 -> 2H2O + CO2