exam 1
metal + nonmetal
what is an ionic compound?
a compound with 4 identical polar bonds (e.g., CF4)
what is nonpolar?
protein kcal/g
what is 4 kcal/g?
the solution has a higher concentration of solute than the cell
what is hypertonic?
the only base (that we know) that doesn't have OH- in it
what is ammonia (NH3)?
109
what is giga?
Avogadro's number
what is 6.02 * 1023?
in an equation showing an ____ reaction, heat is often added to the products side
what is an exothermic reaction?
mol of solute / L of solution
what is molarity?
the 7 diatomic elements
what are H2, N2, O2, F2, Cl2, Br2, and I2?
(sig figs) 1,000.0010
what are 8 significant figures?
molecules of H2O in 63.07 g of H2O
what are 2.107 * 1024 molecules of H2O?
heat of reaction
what is the energy of the products - energy of the reactants?
a substance that dissolves in water to produce a H+ proton
what is an Arrhenius acid?
the only gas law that is an inverse relationship
what is Boyle's Law (P1V1 = P2V2)?
[Ar]4s23d104p2
what is germanium?
NH4+
what is ammonium?
equilibrium constant (K)
what is [concentration of products]moles / [concentration of reactants]moles ?
HNO3
what is nitric acid?
the first on the list of priorities for assigning oxidation states
what are group 1A metals?
compounds with different mass numbers but the same atomic number
what are isotopes?
shape and bond angle of SO42-
what is tetrahedral and 109.5°?
heat of fusion
what is 79.7 cal/g?
[H3O+] given pH of 6.7 at 25°C
what is 2.00 * 10-7 M?
NH4, NH3, CO32-, HCO3-, NO3-, NO2-
what are ammonium, ammonia, carbonate, bicarbonate, nitrate, and nitrite?