Matter
Flammability is an example of a _____ property.
A meter contains how many micrometers?
106 or one million
What is the equation for density?
mass divided by volume M/V
T or F: mass number can be found on the periodic table
false
Selenium
selenide; -2
A ____ change does not change the chemical composition of a substance.
physical
A kilogram is closest to which English unit?
What is the relationship between mL and cm3 ?
they are equal
Isotopes of the same element have the same number of ____ but a different number of ____.
protons; neutrons
Potassium
potassium; +1
Freezing, condensation, and deposition each ______ energy.
release
There are 4000 mL in how many kL?
.004kL
Gold is more dense than silver. You are wearing a pure gold bracelet on your left wrist and a pure silver bracelet on your right wrist. Both bracelets are exactly 14g. Which bracelet is bigger?
silver (right wrist)
If an atom gains or loses a proton, what happens?
A new element forms.
Aluminum
aluminum; +3
Mass is an example of what kind of property?
extensive
A nanometer contains how many meters?
10-9
Equal masses of chlorine gas (3.2 g/L) and bromine gas (7.14 g/L) are housed in separate containers. Which container has a smaller volume?
bromine gas
Atoms gain and lose electrons in order to become _____ with their nearest noble gas.
isoelectronic
Phosphorus
phosphide; -3
Particles in a solid are ____.
vibrating in place
The absolute temperature scale that we use in chemistry is the _____ and is denoted with a ___.
Kelvin scale, capital K
Mass and density have a ____ relationship, whereas volume and density have a _____ relationship. (hint: think about proportionality)
direct; inverse
____ have a positive charge, while ____ have a negative charge.
Cations; anions
Strontium
strontium; +2