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Math
100
Name the following piece of lab equipment:
graduated cylinder
100
HCl + NaOH --> H2O + NaCl
What type of reaction is shown above?
Neutralization reaction
100
__________________ is the study of matter, its composition, structure and properties, as well as the changes it can undergo.
Chemistry
100
what is the name of LiBr?
lithium bromide
100
HCl + NaOH --> H2O + NaCl
How many moles of NaCl will be produced from 5 moles of HCl?
5 moles of NaCl
200
How many protons, neutrons, and electrons are in 73Li+1
3 protons, 4 neutrons, 2 electrons.
200
What type of chemical reaction is shown below?
CH4 + 2O2 --> CO2 + 2H2O
combustion reaction
200
__________________ is the average kinetic energy of a substance's particles.
Temperature
200
Draw the Lewis structure of the following molecule:
CH4
What is its molecular geometry?
Tetrahedral
200
What is the percent of carbon and oxygen in CO2?
27.3% carbon
72.7% oxygen
300
This is used for removing toxic vapors.
Fume hood
300
Balance the following reaction:
___CH4 + ___O2 --> ___CO2 + ___H2O
CH4 + 2O2 --> CO2 + 2H2O
300
If a substance donates H+, this makes it a/an ___________. Hint: these have a low pH and often taste sour.
acid
300
Is CO2 polar or nonpolar? (you'll have to draw its Lewis structure)
nonpolar
300
5.0 grams of chlorine (Cl) is equal to how many atoms of chlorine?
8.5 x 1022 atoms
400
How many valence electrons does Boron (B) have?
3
400
what type of reaction is this:
alpha decay
400
We used this type of separation method to separate our skittle liquid from the solid skittle pieces during our skittle titration. Hint: this separation method involves using filter paper.
filtration
400
what is the formula of copper (II) chloride?
CuCl2
400
If I dissolve 2.0 moles of solute into 1.5 liters of solvent, what is the concentration of the solution that I made? (include the correct units!)
1.33 M (or mol/L)
500
Name all 7 diatomic elements.
H, O, Cl, Br, I, N, and F.
500
What type of reaction is the following:
F2 + 2NaBr --> 2NaF + Br2
single replacement reaction
500
What is this called?
heating curve
500
What is the name of the following molecule?
NH4Cl
ammonium chloride
500
C6H12O6 + 6O2 --> 6CO2 + 6H2O
According to the equation above, how many grams of H2O can be produced from 1.0 gram of O2?
0.56 grams of H2O