Chem test 1: Gamble
radio waves
Which of the following forms of electromagnetic radiation has the longest wavelength. infared, radio waves, visible light, ultraviolent.
Tl
Which of the following particles has the greatest atomic radius
C4H5Cl
a compound contains 54.3% C, 5.6% H, and 40.1% Cl. what is the empirical formula?
scientific law
a generalization statement about observations that summarizes experimental facts about nature
falsifiable
a good hypothesis should be __________________, which means that further testing could prove it wrong.
heterogeneous
a mixture whose properties vary throughout
anion
a negatively charged ion is......
conversion factor
a ration of two equivalent quantities using different units.
chemical formula
a representation of a chemical compound
amu
a unit of mass that is one-twelfth of the mass of a carbon 12 atom
alkali metals
an element having the configuration [Xe]6s1 belongs to the group:
theory
an explanation for observations that withstands peer review
volume, mass
matter is defined as anything that has __________________ and _________________.
Magnesium acetate
name the following ionic compound, Mg(C2H3O2)2?
Iron, Fe
of the following elements, the one that forms cations with varying positive charges is: Sr, N, Fe, Al
metalloids
on the periodic table there is a "stair step" dividing line on the right hand side. elements that are along this stair step are ?
noble gases
on the periodic table, the last group on the right is called the......
characteristic properties
properties that can be used to identify a substance and distinguish it from other substances
specific heat
the amount of heat needed to raise one gram of a substance by 1 degree celsius
protons
the atomic number tells you the number of......
formula unit
the basic unit of ionic compounds and the smallest neutral collection of ions
liter
the basic unit of volume is the....
calorie
the energy needed to raise 1 gram of water 1 degree celsius
ZnSO4
the formula for the ionic compound zinc sulfate is
temperature
the measure of the intensity of the energy of the particles in a substance
Significant figures
the non-place-holding digits in a reported measurement
density
the physical property ____________________, defined as the mass per unit volume.
angular momentum
the quantum number that tells you the subshell as electron is in:
mass number
the sum of the number of neutrons and protons is an atom......
groups
the vertical rows on the periodic table
Isotopes
Atoms of a particular elements that have different masses (due to having different numbers of neutrons)
mole
Avogadro's number of unit particles
hund
Electron, when filling orbitals, remain as unpaired as possible, this observation is credited to?
Alkaline Earth Metals
On the periodic table group II A is known as the ?
Chlorine
What element has the noble-gas notation [Ne] 3S23p5
ions
charged particles that form when an atom either gains or loses electrons
20
for the isotope 39 19K, how many neutrons are in the neucleus
accuracy
how close a set of measurements are to the true value
0
how many d orbitals have n=2?
32
how many electrons can fit in all of the orbitals in which n=4
14
how many electrons in an atom can have n=5, l=3
Type II ions
ionic compounds that contain metal atoms that can form several cations
B2Cl4
what is the formula for diboron tetrachloride?
O2
what is the miniting reagent if you start with 22.4 grams of C3H8 and 23.6 grams of O2. Use CO2 as the product
only one decimal place
when performing the calculations 34.530g+12.1g+1222.34g, the final answer must have:
CO2
which of the following compounds is molecular? MgCl2, CO2, K2SO4, Fe2O3
F
which of the following is a halogen? S, F, Kr, Sn
Na
which of the following is a metal? Na, Si, Ge, P
sugar solution
which of the following is a mixture? water, Iron (II) oxide, sugar solution, iodine.
Silver
which of the following is most likely to combine with an anion to form an insoluble salt? ammonium, sodium, silver, potassium
bleaching action
which of the following is not a physical property? boiling point, physical state, bleaching action, color
Fluorine
which of these elements would have the highest ionizing energy? Sulfur, Potassium, Fluorine, Calcium