Flashcards in 1EXAM- HChem Deck (105):
What is the N, A, and S number of SO3?
32, 24, 8
What is the N, A, and S number of H2O2?
20, 14, 6
What is the N, A, and S number of BCl3?
30, 34, 6
Name this compound: HCl
Name this compound: CuCl2
Copper (II) Chloride
Name this compound: CO
Name this compound: HClO4(aq)
Name this compound: SiBr4
Write the formula for this compound: Tin (II) fluoride
Write the formula for this compound: Hydroiodic Acid
Write the formula for this compound: diphosphorus pentoxide
How many atoms are in 4.0 x 10^-5 g of aluminum?
8.9 x 10^17
What is the molar mass of (NH4)3PO4?
How many hydrogen atoms are in one molecule of (NH4)2PO4?
What is the percent composition of hydrogen in water?
What is the percent nitrogen (by mass) in (NH4)2CO3?
What is the molar mass of CO2?
What is the molar mass of NaOCl?
What is the molar mass of Ca(OH)2?
Find the percent composition of each element in he compound: H2SO4
H = 2.0%, S = 32.7%, O = 65.2%
Find the percent composition of each element in he compound: CO2
C = 27.3%, O = 72.7%
Find the percent composition of each element in he compound: Al2S3
Al = 35.9%, S = 64.1%
Copper has two isotopes. Copper-63 is 69.17% abundant and it has a mass of 62.9296 amu. Copper-65 is 30.83% abundant and it has a mass of 64.9278 amu. What is the weighted average mass of the two isotopes?
The identity of an atom is determined by the number of
The number of protons and neutrons combined is the
Isotopes have the same number of _____, but a different number of ______
The number of protons is called the
Janet, how do you spell the element F?
What's the symbol for tin
What's the symbol for silver
What's the symbol for strontium
What's the symbol for iron
What element is Cd
What element is V
What element is Y?
What do all nickel atoms have in common?
The same atomic number
How is the charge of an ion determined?
If the number of electrons is greater or lesser than the protons?
In a nuclide symbol, of he mass number and atomic number, which is on top and which is on the bottom?
The mass number is on the top and the atomic number is on the bottom
Is length an intensive or extensive property?
Is hardness an intensive or extensive property?
Give some examples of intensive properties, and then extensive
I - density, malleable, boing point
E - length, volume, mass
Give some examples of physical properties
Ductile, conductive, malleable
Is age extensive or intensive? Gender.
Chemical or physical change? Lighting a match
Chemical or physical change? Making paper from wood
Chemical or physical change? Frying an egg
Chemical or physical change? Boiling water to make Mac n Cheese
Chemical or physical change? Making chex mix
Pure substance or mixture? Purified air
Pure substance or mixture? Element or compound?Sucrose
Homogenous or Heterogenous? Wood
Homogenous or Heterogenous? Milk
Homogenous or Heterogenous? Dirt
Homogenous or Heterogenous? Black coffee
How many significant figures? 0.000983
How many significant figures? 6.023 x 10^23
How many significant figures? 2.0 x 10^-3
How many significant figures? 3.456110
How many significant figures? 12700.00
How many significant figures? 12,700
What wavelength corresponds to a frequency of 6.25 x 10^9 Hz?
What is the correct electron configuration for nitrogen?
1s2, 2s2, 2p3
Write the long form electron configuration for potassium
1s2, 2s2, 2p6, 3s2, 3p6, 4s1
What is the frequency for a wavelength of 440 nm?
6.8 x 10^14 Hz
What is empirical form
The simplest reduced form
What is molecular form
The actual number of atoms in a compound
What type of acid do you write "hydro" at the beginning of the name?
What type of compound name do you use prefixes in?
How do you identify an oxyacid?
They will be made of three elements: H, O, and a third element
What must an element be to be a binary or oxyacid?
In oxyacids, what means 1 extra O? 1 less? 2 less?
per + stem + ic, stem + ous, hypo + stem + ous
What are the type 2?
"d-block", tin, lead
What must any acid begin with?
Prefix for 7?
Prefix for 4?
How many dots can be on a side in an electron dot diagram?
What is the bond hybridization of a water molecule?
What word describes how electrons are involved in ionic bonding?
Draw some lewis structures, determine if they are polar, classify them, tell the bond hybridization
Can't really put that in notecards
What are the three types of bonding between molecules?
Hydrogen bonding, dipole-dipole, vanderwaals
What type of bonding do all molecules have?
How do you determine a polar molecule?
One or more line pairs on the central atom, different atoms connected to the central atom
Study periodic table trends
They are probably way better to study visually anyway
Classify the bond: Na — Cl
Classify the bond: Cu — O
Classify the bond: Cs — F
Classify the bond: Cl — Cl
C = ?
2.998 x 10^8 m/s
H = ?
6.626 x 10^-34 J • s
Atoms release energy when they jump to higher energy levels, true or false?
Electrons give off energy in finite amounts called
Sublevels are divided into
Each orbital can hold up to ____ electrons
Electrons give off energy in the form of a _____ when returning to the ground state
What scientist proposed the idea that electrons travel in fixed paths?
When an electron moves to the ground state, energy is ______
No two electrons can have the same four quantum numbers. True or false?
What does the primary quantum number tell you?
What energy level the electron is in
Why do electrons move?
To achieve stability
Half filled orbitals are more stable than partially filled, T or F?
Know crest, trough, wavelength, and amplitude
Amplitude establishes ________
Wavelength establishes __________
Intensity of shade, color
Light travels on ______ waves
OIL RIG means what
Oxidation Is Loss, Reduction Is Gain