Module 1
What is a significant figure?
Digits that tell us how precise a number is.
What is a covalent compound?
Two non metals bonding
what are isotopes?
dif version of same element
different # neutrons same #protons
What is a product?
What is produced from reactants.
what do I need to bring to my exam
non programmable calculator
pencil
student ID
studious energyyyy
Is 1,000 Ambiguous yes or no?
Yes you can't tell the correct number of significant figures.
Name all the Diatomic elements and write them
Hydrogen (H2), Iodine (I2), Bromine(Br2), Chlorine(Cl2) , Oxygen (O2), Nitrogen(N2), and Fluorine(F2).
how do you convert from grams to moles?
Divide the grams you are given by the molar mass.
What is a Limiting reagent ?
Is the reactant that is completely used up in a reaction.
where are office hours located?
ACES
Solve 12.77+15.87688 with the CORRECT amount of significant figures.
28.65 (2 decimal places)
(you can ask rule for mult/division for extra points)
Write the formula for Ammonium.
NH4^+
what is avocados number
6.022*10^23
Balance the reaction H2+N2---> NH3
20%
how many sig figs are in:
0.003003020
7 SF
Give the formula for Ethane
C2H6 (CnH2n+2)
How many molecules are in 150g of Oxygen?
2.82*10^24
Balance the reaction C6H12O6+O2---> H2O+CO2.
C6H12O6+6O2--->6H2O+6H2O
does pineapple belong on pizza?
NOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO
how many microliters are in 1.5 liters?
1.5x10^6 uL
Give the formula for Perchlorate
ClO4-
(you can ask formula for chlorate, chlorite, hypochlorite to understand concept ;))
how many moles of copper (II) bromate are in 250g of Cu(BrO3)2
use correct # sig figs
0.783 mol
if a sample of potassium sulfate weighs 65.42g how many moles of potassium atoms are in the sample?
0.749 mol of K atoms
True or False
Michael Scott's bff is Toby
FALSE.