Chapter 1&2
2.0 times 4.0
What's the answer in proper sig figs
a) 8.0
b) 8
c) 8.
d) 8.00
a) 8.0
Which is a Homogenous mixture
a) Air
b) Water
c) Ice coffee
d) Table salt
a) Air
what does Z stand for in the isotope notation A Z X
a) atomic number
b) number of nuetrons
c) atomic mass
d) Chemical symbol
a) atomic number
Name this compound N2O5
a) Dihydrogen Peroxide
b) Dinitrogen oxide
c) Nitrogen pentoxide
d) Dinitrogen pentoxide
d) Dinitrogen pentoxide
Write value 22000 In scientific notation
a) 2.2 x 104
b) 22. x 104
c) 2.2 x 103
d)22 x 103
a) 2.2 x 104
What is the Heterogenous mixture
a) Brass metal
b) Salt water
c) Blood
d) Ice Coffee
d) Ice Coffee
Which of the following gives the correct
numbers of protons, neutrons, and electrons
in a neutral atom of 118 50 Sn?
a) 118 protons, 50 neutrons, 118 electrons
b) 118 protons, 118 neutrons, 50 electrons
c) 50 protons, 68 neutrons, 50 electrons
d) 50 protons, 50 neutrons, 50 electrons
c) 50 protons, 68 neutrons, 50 electrons
what's this compounds formula Dihydrogen monoxide ?
a) H2O1
b) OH2
c) H2O
d) HO
c) H2O
Write value 0.000234 In scientific notation
a) 2.34 x 104
b) 2.3 x 10-4
c) 2.34 x 10-4
d) 2 x 10-4
c) 2.34 x 10-4
What is the specific heat of solid water
a) 2.02 J/g C
b) 2.06 J/g C
c) 4.18 J/g C
d) 4.81 J/g C
a) 2.02 J/g C
What is the element with the electron
arrangement 2,8,6?
a) Sulfur
b) Chlorine
c) Phosphorus
d) Oxygen
a) Sulfur
Give compound name Ba3N2
a) Tribarium dinitride
b) Barium nitrate
c) TriBarium nitride
d) Barium nitride
d) Barium nitride
2.32 + 0.680 What's the answer in proper sig figs
a) 3.00
b) 3.0
c) 3.000
d) 2.99
a) 3.00
How many calories are required to increase the temperature of 13g to of ethanol from 11 *C to 23*C? specific heat of ethanol is is 0.59 Cal/g C
a) 92.04
b) 0.92
c) 92.0
d) 92
d) 92
Oxygen, Sulfur, and Selenium all have what in common ?
a) are isotopes of each other
b) are in the same period of elements
c) have the same mass number
d) have a similar charge
d) have a similar charge
Give compound name FeO
a) Iron (II) oxide
b) Iron (I) oxide
c) Iron (III) oxide
d) Iron monoxide
a) Iron (II) oxide
Dimensional analysis Convert 2678 cm to ft ( 1 in = 2.54cm), (12 in = 1 ft)
a) 87.90
b) 88.00
c) 87.86
d) 87.00
c) 87.86
You have a sample of H2O with a mass of 23.0 g at a temperature of –46.0°C heat the ice to 0°C?
a) 218
b) 2179.48
c) 2180
d) 2.18 x 103
d )2.18 x 103
whats the mass, proton, and eclectron count of Uranium-238
a) 146, 92, 92
b) 283, 92, 92
c) 238, 92, 92
d) 238, 146, 92
c) 238, 92, 92
Give formula for zinc nitrate
a) Zn3N2
b) Zn(NO3)2
c) Zn(NO3)
d) Zn3N2
b) Zn(NO3)2