Ions
What is an ion?
an atom or molecule with a net electrical charge
Why do we balance equations?
Law of conservation of mass
What is the Molarity of a solution of CaCI2 that contains 0.4moles of solute in 320 mL of water?
1.25
How many atoms are in a mole?
6.022x10^23
What is temperatur?
Average Kinetic energy
What is the difference between a Cation and a Anion?
a cation is positively charged and a anion is negatively charged
What type of reaction is this 2CO(g)+O2(g)=2CO2(g)?
Combustion
What is the Molarity of a solution of KNO3 if 150 grams are dissolved in 4.2L of solution?
0.353
If you have 23g of NaCI, how many moles do you have?
0.393
What is the equation for Boyles Law?
P1 x V2 = P2 x V2
Atoms will gain or lose electrons to achieve electron configurations similar to what?
Noble Gases
What does the law of conservation of mass state?
Mass cannot be created or destroyed by a chemical reaction
What is the volume of a solution of NaCI that has a molarity of 2.4M, and contains 8.2 moles of solute?
3.42L
You have 4.2 moles of CaCo3. how many molecules do you have?
2.53x10^24
What is 450 Torr in atm?
0.59 Atm
What is the formula for sodium chloride and magnesium chloride
NaCl and MgCl2
What type of reaction is this 2Al(s)+3S(s)=1Al2S3(s)
Synthesis
What mass is needed to make the solution indicated-2.0 liters of a 1.5 M sodium nitrate (NaNo3) solution
255
You have 4.2 moles of CaCO3 how many grams do you have?
420.4g
What gas variable must stay constant when Charles Law is applied to a gas?
Pressure and number of moles
What is the formula for calcium phosphate?
Ca3(PO4)2
Balance this - __CH4(g)+___O2(g)=__CO2+__H2O
1,2,1,2
What mass is needed to make the solution indicated - 1.0 liter of a 1.0 M mercury(II) chloride (HgCl2) solution
272 rounded
What is the molar mass of H2SO4?
98.09 mol
A 0.2374 mol sample of C2H6 is in a 27.3L container. What is the pressure of this gar in kilopasals at 414.8k?
30kPa