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