juggernog
the ammount of matter an object contains is its ___
mass
a blend of two or more components is a ___
mixture
the 3 states of matter are ___, ___, and ___
solid, liquid, gas
name these elements
H, N, C, O, B, K, Ca, Na
hydrogen
nitrogen
carbon
oxygen
boron
potassium
calcium
sodium
a mixture in which the composition is uniform throughout is a ___. one that isnt uniform is a ___
(x2)
(cost=300)
homogenous mixture, hetrogenous mixture
atoms that have the smae number of protons but different number of neutrons are called ___
isotopes
study of all chemicals containing carbon is called ___
organic chemistry
the process that seperates a solid from a liquid in hetrogenous mixture is called ___
filtration
___ is the means by which a society provides its members with those things needed and desired
technology
how do you find the number of neutrons of an element?
(one team loses half their points)
(cost=400)
mass number-atomic number
the area of chemistry that focuses on the composition of matter is ___
analytical chemistry
sdfdfsdf
sddfsd
melting point and boiling point of water in celcuis are ___ and ___
0, 100
what are the 3 subatomic particles?
protons, electrons, neutrons
density is calculated by ___
(x3)
(cost=500 points)
mass/volume
what element's symbol is Pt
platnium
the steps for solving a nonnumeric problem are ___ and ___
analyze, solve
mercury's symbol is ___
Hg
put these prefixes in order from smallest to largest
pico, mega, kilo, milli, nano, micro, deci, centi
pico, nano, micro, milli, centi, deci, kilo, mega
the steps for solving a numeric word problem are ___, ___, and ___
(all opponents lose 500 points)
(cost=half points)
analyze, calculate, evaluate
what are the SI base units of these
length, mass, temp, time, ammount of substance, luminouos intensity, electric current
mater, kilogram, kelvin, second, mole, candela, ampere
define scientific notification
a notification on an electronic device that relates to science somehow
or
doesn't exist
the actual mass of (in grams) of a proton and neutron is 1.67 x 10___
-24
dalton's symbol for oxygen is what shape?
circle
in Ruthford's Gold-Foil experiment, he shot ___ particales through gold foil
(x5)
(cost=1000 points)
alpha