A) 14,000 g/cm3 B) 14.28g/cm3 C) 0.014g D) 0.014 g/cm3
A) somewhat spread apart with almost not movement B) very far apart and feely moving C) somewhat spread apart with little movement D) very close together and freely moving
A) atom with different number of neutrons B) atom with different number of electrons C) atom with different number of protons D) atom with different number of energy levels
A) 4p B) 3d C) 5s D) 4d
A) S B) Na C) Si
A) magnesium B) aluminum C) nitrogen D) oxygen
A) 2.05atoms B) 2.05x1024atoms C) 0.56x10-24atoms D) 18.3atoms
A) 2.70mol B) 36.4x1023 mol C) 185.92mol D) 0.37mol
A) 24.67grams B) 0.041grams C) 222grams D) 117grams
A) Al2Cl B) Al2Cl3 C) AlCl2 D) AlCl3
A) composition B) combustion C) decomposition D) single-replacement
A) double-replacement B) composition C) combustion D) single-replacement
A) 3,__,__,3 B) __,3,3,__ C) balanced D) __,3,__,3
A) reactants B) coefficients C) products D) subscripts
A) 65.6grams B) 138.7grams C) 52.0grams D) 39.6grams
A) Li=+1 O=-2 B) Li=+1 O=-1 C) Li=+2 O=-1 D) Li=+2 O=-2
A) 120 amu B) 76 amu C) 76 g/mol D) 120 g/mol
A) 2% B) 20% C) 89% D) 11%
A) 36 g/mol B) 74 amu C) 36 amu D) 74 g/mol
A) single-displacement B) combustion C) double-displacement D) synthesis E) decomposition
A) combustion B) single-displacement C) synthesis D) double-displacement E) decompostion
A) decompostion B) synthesis C) double-displacement D) single-displacement E) combustion
A) synthesis B) combustion C) decomposition D) single-displacement E) double-displacement
A) synthesis B) single-displacement C) double-displacement D) decomposition E) combustion
A) oC B) K C) L D) atm
A) L B) torr C) K D) atm
A) 0.047cm3 B) 395cm3 C) 0.001cm3 D) 13976cm3
A) 805mmHg B) 1071mmHg C) 706mmHg D) 1200mmHg
A) 303K B) 105.3K C) 581K D) 855K
A) 206K B) 352K C) 500K D) 421K
A) 49atm B) 18.9atm C) 32atm D) 15atm
A) Add 273 B) Divide by 273 C) Multiply by 273 D) Subtract 273
A) All of these B) 760 torr C) 101.325kPa D) 1atm
A) Two of the above B) L C) K D) oC
A) experimentation B) communicating results C) organizing data D) research
A) music B) sunlight C) growth D) water
A) growth B) water C) music D) sunlight
A) 860 B) 8.6 C) 0.86 D) 86000
A) homegeneous mixture B) heterogeneous mixture C) compound D) element
A) air B) hydrogen C) salt water D) two of these
A) are hard to pick out B) combine to form new substances C) maintain seperate identities D) none of these
A) chemical property B) physical property
A) chemical property B) physical property
A) physical change B) chemical change
A) chemical change B) physical change
A) noble gases B) halogens C) alkali metals D) transition metals
A) by atomic number B) by atomic mass C) alphabetically D) by date of discovery
A) Thomson B) Millikan C) Rutherford
A) Thomson B) Rutherford C) Millikan
A) 8 B) 7 C) 9 D) 6
A) 6.02x1023 B) Not enough information C) it depends on the mass
A) 1s12s12p6 B) 1s22s22p6 C) 1s22s22p5 D) 1s12s22p5
A) [Ar] 4s2 B) [Ar]5s2 C) [Kr]5s2 D) [Kr]1s22s22p63s23p64s23d104p65s2
A) increases B) decreases
A) decreases B) increases
A) 12 B) 4 C) 3 D) 6
A) ionic B) metallic C) special D) covalent
A) ionic B) special C) covalent D) metallic
A) MgS B) MgS2 C) MgS4 D) Mg2S
A) CCl2 B) CCl4 C) CCl D) CCl3
A) iron chloride B) iron (IV) chloride C) iron (II) chloride D) iron dichloride
A) nitrogen hexachloride B) nitrogen chloride C) nitrogen (III)chloride D) trinitrogen hexachloride
A) donates/accepts electrons B) shares electrons
A) how much it weighs B) charge C) nothing D) number of atoms
A) transition metals B) 4A C) two of these D) groups 1A,2A,3A and 4A
A) __,3,__,3 B) 3,__,__,3 C) __,__,__,__ D) __,3,3,__
A) __2,2,__ B) 2,__,2,__ C) __,__,__,__ D) __,2,__,2
A) subscripts B) multipliers C) dividers D) coefficients
A) metals B) metalloids C) nonmetals
A) total protons B) total electrons C) valence electrons D) total neutrons
A) Cr2Cl B) Cr2Cl2 C) CrCl D) CrCl2
A) NaCl B) NaOH C) HF D) HCl
A) 12.5g B) 25 C) 0g D) 50
A) acids B) neutral C) bases
A) ... B) Ms. Watson C) ... |