Gas Laws
how many zeros follow behind 1 mole of somthing (6.022...)
(6.02200000000000000000000000)
Whats the Mass Number?
The total number of protons and neutrons in the nucleus of an element. (Mass Number= Protons + Neutrons)
Physical Change - changes that form a new substance, but everything keeps its chemical identity
Chemical Change - changes that cause a new chemical substance to form because atoms are rearranged
Name the 5 Guideline types of Chemical reactions
Synthesis- A + B → AB
Decomposition- AB → A + B
Single Replacement A + BC → AC + B
Double Replacement- AB + CD → AD + BC
Combustion- Fuel + O2 → CO2 + H2O
How many jumps on the Stoichiomerty Mole Island Diagram to find the Mass of an unknown substance B from the Mass of known substance A
3 jumps. Starting at Mass of substance A jumping to Moles of Substance A then jumping to Moles of Substance B and finally jumping to Mass of substance B
How do you measure temperature for gas laws?
in Kelvin
K = 273.15 + oC
What Metalloid is not chemically treated like a Non-Metal/
Boron
What is Matter?
Anything that takes up space and can be weighed. In other words, matter has volume and mass. Primarily solids, liquids, and gases
CH4 + 2O2 → CO2 + 2H2O Is this equation complete combustion or incomplete combustion?
Complete combustion because it produced CO2 gas
Identify the starting and ending points of this problem. How many liter of Carbon Dioxide, measured at STP, will be produced when 160.86 grams of Methane, (CH4) is burned?
Starting point - Mass of Methane
Ending point - Volume of Carbon Dioxide
Define pressure
The amount of molecules that collide with the container
What makes up the Atomic Number?
The number of protons in an atom. The protons give the identity of the element. No two elements have the same atomic number.
What are Polyatomic ions?
A group of covalently bonded atoms that tend to act as a single atom when bonding with other atoms.
What does fizzing/bubbling mean?
a chemical reaction releasing large amounts of O2 gases
How many moles are in 4476.33 grams of Copper (ll) Hydroxide, (Cu(OH)2)?
49.79 moles of Cu(OH)2
What tools are used to find these
A. Pressure
B. Temperature
A. Barometer
B. Thermometer
Which of the following is smallest? Electron (+ charge), Neuron (no charge) or Proton (- charge).
Electron (+ charge)
Is Natural Peanut Butter Heterogeneous, Homogeneous, or Colloid/ Emulsion?
Colloid/ Emulsion
What type of problem is this? 2H3PO4 + 3Mg(OH) →Mg3(PO4)2 + 6H2O
Acid/ Base Neutralization
Known comes from the Stoichiometry map and Given comes from the problem.
Name all of the gas laws (there's 5)
Boyle's law, Charles's law, Gay-Lussac's law, Avagadro's law, and Ideal Gas law.
What four steps are taken to calculate the Ave. Atomic Mass?
convert percents to decimals
find mass number for each isotope
multiply mass number (M) by converted percentage (f)
add those totals together
What is Metallic Bonding?
Bond between 2 or more metals. Electrons become the property of all the atoms as valence levels overlap with other valence levels creating a 'ocean wave' like movement of electrons
what Chemical reactions weren't in the Reference packet?
Acid/ Base &/or Acid/ Base Neutralization
Fermentation (A biochemical reaction mentioned in the Synthesis slideshow)
Hydrogen can react explosively with oxygen to form water. If 125 liters of O2 are combined with an excess of H2, how many grams of water will be produced and how what jumps were taken to get there? (2H + O2 → 2H20)
201 grams of water. Starting at Volume jumping to Moles of substance A, then jumping to Moles of substance B and finishing at Mass.