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46 Cards in this Set

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Hydrogen combines with nitrogen in a 3:14 weight ratio to form ammonia. If every molecule of ammonia contains three atoms of hydrogen and one atom of nitrogen, an atom of nitrogen must weigh:
A: 14/3 times the mass of a hydrogen atom
B: 3 times the mass of a hydrogen atom
C: 14 times the mass of a hydrogen atom
D: 3/14 times the mass of a hydrogen atom
C: 14 times the mass of a hydrogen atom
Hydrogen combines with florine ina 1:19 weight ration to form hydrogen fluoride. If every molecule of hydrogen flouride contains one atom of hydrogen and one atom of fluorine, an atom of fluorine must weigh:
A: 38 times the mass o a hydrogen atom
B: 1/38 times the mass of a hydrogen atom
C: 19 times the mass of a hydrogen atom
D: 1/19 times the mass of a hydrogen atom
C: 19 times the mass of a hydrogen atom
Dalton said that elements are different distinguished from each other by:
A: the weights of their atoms
B: The density of their solid forms
C: the shapes of their atoms
D: the charge on their ions
A: the weights of their atoms
WHich of the following is NOT a postulate of Dalton's atomic theory?
A: atoms of a single element can have different masses
B: atoms combine in simple whole number ratios to form compounds
C: different elements have atoms of different masses
D: chemical change is a rearrangement of atoms
E: atoms are not created or destroyed in chemical change
A: Atoms of a single element can have different masses
The alpha particle scattering experiment was carried out by:
A: Goldstein
B: Rutherford
C: J. Chadwick
D: J.J. Thomson
B: Rutherford
According to Rutherford, the atom consists of the following two parts:
A: nucleus and the extra-nuclear part
B: Neutrons and Electrons
C: Protons and Neutrons
D: Electrons and Protons
D: Electrons and Protons
The Rutherford scattering experiment led to the conclusion that at atom consists of mostly open space.
A: True
B: False
A: True
Groups in the periodic table are also known as:
A: Periods
B: Chemical Families
C: IUPACs
D: assemblages
B: Chemical Families
Groups are arranged vertically in the periodic table.
A: True
B: False
A: True
Which radiation type has no detectable charge?
A: alpha
B: beta
C: gamma
D: both alpha and gamma
C: Gamma
The STM, scanning tunneling microscope, shows:
A: the outer boundary surface of the electrons in an atom
B: number of excited electrons in an atom
C: the charge of the nucleus
D: the mass of the nucleus
A: the outer boundary surface of the electrons in an atom
Which sequence lists a nonmetal, metalloid and a transition metal, respectively?
A: Al, As, Ag
B: Co, Pb, P
C: O, Ge, Cs
D: N, Si, Fe
D: N, Si, Fe
A chemist on another planet performed the Millikan oil-drop experiment and measured the following charges in his planet's unit for charge, the bot: 2.62 times 10 to the negative 13 bots; 3.93 times 10 to the negative 13 bots. What is the electron's charge in bots?
A: 1.31 times 10 to the negative 13 bots
B: 6.55 times 10 to the negative 14 bots
C: 3.93 times 10 to the negative 13 bots
D: 2.62 times 10 to the negative 13 bots
A: 1.31 times 10 to the negative 13 bots
Typically, the mass of an atom of an element in grams is closests to:
A: 10 to the negative 10
B: 10 to the 23
C: 1
D: 10 to the negative 32
E: 10 to the negative 22
E: 10 to the negative 22
Naturally occurring neon consists of two isotopes: 20Ne and 22Ne. How many neutrons are in each isotope?
A: 20, 22
B: 10,10
C: 11, 13
D: 10, 12
E: 21, 23
D: 10, 12
Which of the following is a metal?
A: Se
B: S
C: Sr
D: Si
E: P
C: Sr
An elemental ion has 22 protons, 20 electrons, and 26 neutrons. Which isotope is it?
A: (47)26Fe
B: (48)26Ti
C: 48(22)Ti
D: 48(22)Ti to the negative 2
E: 48(22) Ti to the positive 2
E: 48(22)Ti to the positive 2
_____rays are a stream of fast-moving electrons.
A: Alpha
B: Beta
C: Gamma
D: None of these
B: Beta
Which of the following should be the most similar in chemical property to strontium?
A: Li
B: At
C: Rb
D: Ba
E: Ga
D: Ba
An (56)Fe 2+ particle contains:
A: 26 protons, 30 neutrons, and 24 electrons
B: 54 protons, 56 neutrons, and 52 electrons
C: 58 protons, 58 neutrons, 56 electrons
D: 28 Protons, 28 neutrons, 26 electrons
E: 26 protons, 26 neutrons, and 26 electrons
A: 26 protons, 30 neutrons, and 24 electrons
How many nitrogen atoms are in CH2(NH2)2:
A: 1
B: 4
C: 2
D: 3
E: 6
C: 2
What is the name for CuS?
A: Copper(II) sulfide
B: Copper(I) sulfide
C: Copper(II) sulfur
D: Copper(I) sulfur
E: Copper sulfide
A: Copper(II) sulfide
Which of these acids has a name that begins with hydro-?
A: HCI
B: HCIO
C: HCIO2
D: HCIO3
E: HCIO4
A: HCI
Elements belonging to which group of the periodic table form ions with a 2+ charge?
A: alkaline earth metals
B: halogens
C: chalcogens
D: alkali metals
A: alkaline earth metals
Water, no matter where it is found, consists of hydrogen and oxygen combined in a 1:18 ratio by mass. This is a statement of
A: the law of multiple proportions
B: the law of constant composition
C: the law of conservation of mass
D: the law of conservation of energy
E: none of these
B: the law of constant composition
Which one of the following is improperly labeled?
A: Na; akali metal
B: Ba; alkaline earth metal
C: Kr; noble gas
D: I; chalcogen
E: F; halogen
D: I; chalcogen
The element zinc consists of five isotopes with masses 63.929, 65.926, 66.927, 67.925 amu. The relative abundances of these five isotopes are 48.89, 27.81, 4.110, 18.57, and 0.62 percent, respctively. From these data calculate the average atomic mass of zinc.
A: 63.93 amu
B: 66.93 amu
C: 65.387 amu
D: 66.927 amu
E: 65.39 amu
E: 65.39 amu
If 60g of carbon combine with 10g of hydrogen to form a compound, this means that any sample of this compound will contain ____ part(s) and ____ part(s) hydrogen by mass.
A: 6, 0.17
B: 6, 1
C: 5, 1
D: 5, 10
E: 1, 1
D: 5, 10
Which one of the following incorrectly labeled?
A: Mg; alkali metal
B: Ca; alkaline earth metal
C: I; halogen
D: Rn; noble gas
E: Te; chalcogen
A: Mg; alkali metal
How many protons and neutrons are ther in 98/43Tc?
A: 43 protons and 55 neutrons
B: 55 protons and 43 neutrons
C: 98 protons and 43 neutrons
D: 49 protons and 98 neutrons
A: 43 protons and 55 neutrons
Which pair of symbols represents isotopes?
A: 160, 16N
B: 160, 170
C: H, HE
D: He, He+
E: 13C, 14N
B: 16O, 17O
An element in the lower left corner of the periodic table
A: is either a metal or metalloid
B: is definitely a metal
C: is either a metalloid or a nonmetal
D: is definitely a nonmetal
E: is definitely a metalloid
B: is definitely a metal
WHich one of the following elements does not exist as a diatomic molecule?
A: H
B: N
C: S
D: F
E: O
C: S
Which of the following statements is true about the following list of compounds? CO2;KCl;KNO3;N2O
A: KCl,KNO3, and N2O are the only ionic compounds
B: KCl is the only ionic compound.
C: KNO3 is the only ionic compound
D: CO2 is the only molecular compound
E: CO2, KNO3, and N2O are the only molecular compounds.
F: CO2 and N2O are the only molecular compounds.
F: CO2 and N2O are the only molecular compounds
How many carbon atoms are in CH3-O-Ch2-C2H5?
A: 1
B: 10
C: 3
D: 4
E: 2
D: 4
Which name is incorret?
A: CC14 carbon tetrachloride
B: N204 dinitrogen tetroxide
C: Al2O3 dialuminum trioxide
D: SCl2, sulfur dichloride
E: CS2 carbon disulfide
C: Al2O3, dialuminum trioxide
Which of the following compounds is not a possible ionic compound?
A: CsCl
B: SrO
C: GaF3
D: Cs2O
E: NaF2
E: NaF2
Which of the following is named correctly?
A: BaCl26H20; barium chloride pentahydrate
B: NaclO sodium chlorite
C: NaC2H3O2; sodium acetate
D: KNO2; potassium nitrate
E: Li2SO3; lithium sulfate
C: NaC2H3O2; sodium acetate
A certain number of electrons has a total charge of~ 1.1x10 to the negative 18C. HOw many electrons are there?
A: 1
B: 2
C: 4
D: 7 ( the charge on one electron is 1.6x10 to the negative 19)
E: 11
D: 7
Which ion has the wrong charge?
A: Cs1+
B: Ba2+
C: Te2-
D: Xe1-
E: I1-
D: Xe1-
How many hydrogen atoms are in Co(NH3)6HPO4?
A: 19
B: 6
C: 3
D: 18
A: 19
What was the significance of the early experiment that demonstrated that a brightly glowing ray passed through a tube that contained nothing-a vacuum?
A: This experiment shoed that glass acts as a good conductor of electricity
B: This experiment showed that the ray itself was composed of particles.
C: This experiment showed that the gases in the glass tube were required for the glowing ray
D: This experiment shoed that a vacuum actually does contain gaseous particles
A: This experiment showed that glass acts as a good conductor of electricity
What experiment established that the vast majority of the mass of an atom is contained in the nucleus?
A: Rutherford's experiment where gold foil is bombarded by electrons that are deflected by the gold nuclei
B: Rutherford's experiment where a gold foil is bombarded by positively charged helium
C: Rutherford's experiment where gold foil is bombarded by positively charged helium nucli that are deflected by the negatively charged nucleu of the gold.
D: Rutherford's experiment where gold foil is bombarded by positively charged helium nuclei that are deflected by the gold electrons.
C: Rutherford's experiment where gold foil is bombarded by positively charged helium nuclei that are deflected by the negatively charged nucleus of gold.
The ray of light within a neon sign bends when a magnet is held up to it because
A: impurities within the neon plasma are attracted to the magnet
B: neon, like iron, is attracted to magnets.
C: the light arises from the flow of electron within the tube
D: magnetic fields are able to pass through glass.
C: the light arises from the flow of electron within the tube.
Which statement below correctly describes the responses of alpha, beta, and gamma radiation in an eletric field?
A: both beta and gamma rays are deflected in the same direction while alpha rays show no response.
B: Both alpha and gamma rays are deflected in the same direction while beta rays show no response.
C: Both alpha and beta rays are deflected in opposite directions while gamma rays show no response.
D: Beta and alpha rays are deflected in opposite directions while gamma rays show no response.
D: Beta and alpha rays are deflected in opposite directions while gamma rays show no response.
The name of the ionic compound KBrO4 is
A: Potassium perbromate
B: Potassium bromate
C: Potassium hypobromate
D: Potassium Perbromite
E: Potassium bromide
A: Potassium perbromate