CHEM by LANCI 1 Flashcards
What is the chemical symbol for the element potassium?
k
What is the standard unit of length?
meter
What is the Carbonate radical charge?
-2
Which radical contains the greater number of oxygen atoms?
sulfate or sulfite
sulfate
Nonmetals and halogens are electron___________
RECEIVERS
Aluminum has a valence of what?
+3
Which of the following is a noble gas?
Ag,Ar, Br, CO2
Ar
What is the name of the radical with the symbol (NO3)-1
nitrate
What is Oxygen?
metal, non-metal, metalloid, noble gas
Non Metal
WHAT is defined as anything that has mass and occupies space.
volume,matter, plasma, weight
MATTER
A liquid’s resistance to flow is called its WHAT?
viscosity
In Physical Matter: mass divided by volume is known as WHAT?
density
The conversion of a solid to a gas without passing through liquid form is WHAT
sublimation
The physical state of matter that has no definite shape and no definite volume is called WHAT.
gas
The smallest fundamental unit of an element that maintains all the distinguishing features of that element is a(n) __________?
ATOM
The type of water that does contain minerals in solution, but not in sufficient quantities to destroy the cleansing action of soap is WHAT? hard water soft water permanent hard water temporary hard water
soft water
A pH of 6.1 is considered WHAT? alkaline acidic neutral basic
ACIDIC
WHAT can be defined as the union of the hydrogen ions of an acid with the hydroxyl ions of a base to form water, a neutral substance. neutralization hydrolysis acidification dessication
NEUTRALIZATION
Which compound is released as putrefactive bacteria act on nitrogenous organic matter? NH2 NO2 NH3 HCHO
NH3
During dissociation, the positive poles are called WHAT?
ANODES
WHAT IS the saturated hydrocarbon containing six carbon atoms called: ethane hexane decane propane
HEXANE
When an alkane loses a hydrogen, a(n) \_\_\_\_\_\_\_\_\_\_\_\_\_ can attach at that point. metal functional group alkyl group radical
FUNCTIONAL GROUP
WHAT IS Ar-X is the general formula for? aromatic aldehyde aromatic halide aromatic ketone Argon atom
AROMATIC HALIDE
What is the functional group for an amine? R-COOH NH3 R-NH2 NH2
NH2
organic compounds are NOT WHAT? usually flammable slow to react covalently bonded soluble in water
soluble in water
GIVEN THIS EQUATION:
2H2(g) + O2(g) → 2H2O(l)
WHAT IS O2(g) is in the reaction?
reactant
Use the molecular coefficient to determine the number of each element present in 3CO2.
C=3
O=6
Which subatomic particle has a positive charge?
PROTON
WHAT is the solvent in an aqueous solution.
WATER
Which of these do NOT influence Diffusion? agitation concentration pressure temperature
pressure
The element Be has:
atomic number: 4
atomic mass: 9
Identify the correct number of protons, electrons, neutrons, and valence for this element .
Protons= 4
Electrons=4
Neutrons=5
Valence +2
Metals form which type of ions? anions cations neutral ions NONE of the above
CATIONS
A solution that contains more of the solute than could be dissolved by the solvent under normal conditions is a \_\_\_\_\_\_ solution. dilute unsaturated saturated supersaturated
SUPER
Formaldehyde is mixed with WHAT to form Formalin?
Methyl Alcohol
Elements are arranged on the periodic table by WHAT?
ATOMIC NUMBER
All of the following are metalloids EXCEPT. Silicon Si Arsenic As Aluminum Al Antimony Sb
ALUMINUM
Heat is released in WHAT type of reaction?
exothermic
What is the number of protons, electrons, and neutrons for these
C-12
C-13
C-14
ISOTOPES.. do the math!
When bonds are formed by shared electrons they are called WHAT
COVALENT
Which forms positive ions? metalloids non-metals metals isotopes
METALS