Precipitation and molarity
Difference between total ionic and net ionic equation
A net ionic equation shows only the elements and compounds that are involved in a reaction, while a complete ionic equation also includes the spectator ions
Define oxidation and reduction
Oxidation is the loss of electrons and Reduction is the gain of electrons
Calculate the frequency of blue light having a wavelength of 350 cm
8.57 x 107 Hz
How many nodes (hint: remember pictures) are in P, S, F, and D orbital
P = 2, S = 1, F = 8, D = 4
What occurs to energy and frequency as wavelength increases?
frequency and energy (E) decreases
Does a precipitate form for this chemical equation: AgNO3(aq) + KCl(aq) →
Yes : AgCl(s) + KNO3(aq)
MnO2 (Find the oxidation number of Mn)
+4
What is the energy of a photon with a wavelength of 200 cm?
9.939 x 10-26 J
Determine the sublevels for 3
s, p, d
Rank the different types of wavelength from shortest to longest
radio waves, microwaves, infrared, visible light, ultraviolet, X-rays, and gamma rays
How many grams of hydrogen chloride (HCl) are required to prepare 500 mL of 5M HCl in water?
91.25 g HCl
Determine what is being oxidized and what is being reduced:
2HCl (aq) + Zn (s) → H2 (g) + ZnCl2 (aq)
Zn is oxidized and H in HCl is reduced
A photon of light has a wavelength of 0.050 cm. Calculate its energy.
3.98 x 10-22
Given the information find the n, ℓ, mℓ,sublevel numbers, and number of orbitals: 4d
n=4, ℓ = 2, mℓ = -2, -1, 0, 1, 2, number of orbitals = 5 (2ℓ + 1)
What are the shapes of s, p, and d orbitals
s = spherical
p = hourglass
d = flower
Using the chemical equation how many grams of HCl is required to neutralize 20.0 mL of 0.5 M NaOH? HCl(aq) + NaOH(aq) → NaCl(aq) + H2O(l)
0.365 g HCl
Balance the chemical equation and determine what is being oxidized and what is being reduced: AlCl3 (aq) + Mg (s) → Al (s) + MgCl2 (aq)
Balanced chemical equation: 2AlCl3 (aq) + 3Mg (s) → 2Al (s) + 3MgCl2 (aq)
Oxidized is Mg
Reduced is Al in AlCl3
Determine the wavelength of a 90 kg person driving at a speed of 100 mi/hr
1.65 x 10-37 m
Write a set of quantum number for 3p
n=3, ℓ = 1, mℓ = -1, 0, 1
Determine what occurs when green light strikes a metallic surface
The photoelectric effect occurs and photoelectrons are emitted