Acids and Bases
What pH do acids have?
less than 7
Which intermolecular force is in all molecules?
London dispersion
Which reaction type has more products than reactants?
Which chemical reaction occurs in stars?
fusion
What is a mole?
What is released by acids?
Using PV=nRT, if temperature increases what happens to pressure?
It increases
Which reaction type produces CO2 and H2O?
Combustion
Fission reactors are considered green energy but they also produce what potential environmental pollutant?
Spent radioactive material that has to be stored
What is the molar mass of SO2
64.1 g/mol
Bases accept _______ or release _______
protons, hydroxide (OH)
What does n stand for in PV=nRT?
number of moles
Complete the reaction
______ --> Zn + Cl2
ZnCl
Which decay type releases no particles?
gamma
What are the units of Avogadro's number?
particles/mol
What is the acid, conjugate base pair in this equation?
H3O + NH3 --> NH4 + H2O
H3O and H2O
How long will it take 100 grams to decay to 12.5 g if the half life is 10 days?
30 days
What charge does Cr have in CrS
+2
The alpha particle has what mass and atomic number?
4, 2
How many grams are in 2 moles of H2
4 g
What is the conjugate acid of Mg(OH)2
MgOH
Which is polar
CO2
Br2
HCl
HCl
Fe3(PO4)2 + MgO --> ______ + ______
FeO + Mg3(PO4)2
Which decay type raises the proton number by one?
beta negative
How many moles are in 10 grams of Ca(OH)2
.135 mol