lab safety
when should goggles be worn in lab?
always
where are metals located on the periodic table?
to the of the left of staircase
noble gases are
unreactive
how many sig figs are in 3200
2
example of synthesis reaction
A+B --> AB
who disposes of broken glass or is notified of any issues in lab?
the instructor
where are non metals located on the periodic table?
to the right of the staircase
all pure substances are
homogenous
how many sig figs are in 2.000
4
example of decomposition reaction
AB--> A+B
how should you point a test tube when heating it?
away from you and others
what are vertical columns on the periodic table called
groups or families
what is the definition of matter
anything that takes up space and has mass
how many sig figs are in 0.0080
2
example of single displacement reaction
A+BC-->B+AC
what should you wear in lab?
closed toe shoes
what are rows on the periodic table called
what is densistys formula
d=m/v
how many sig figs are in 5004
4
example of double displacement reaction
AB+CD-->AD+BC
what shouldn't you wear in lab?
open toe shoes, jewelry
metalloids can be described as
semiconductors
the smallest unit of matter that retains property of matter
atom
how many sig figs are in 8976754
7
example of combustion reaction
CH+02-->AD+BC