Unit 1: Chemistry and you
how close a measurement is to true value, depends om care in measuring
define energy
which way does groups/families go
vertical columns
Name one of the Shapes of molecules
Linear, bent, trigonal planar, tetrahedral, pyramidal
if the molecular speed of a gas increases, its rate of diffusion will .....
increase
what is a precise measurement
how close several measurements are to the same value.
sunlight is an example of what kind of energy
radiant energy
what is the group 1A called
Alkali Metals
what kind of orientation do molecules form
3-D
convert 738 mmHg --> atm
.971
explain the difference between qualitative and quantitative.
quantitative is the amount of something not caring how it comes out when qualitative is is how good something came out but not in big numbers
what are the 3 types of potential energy
chemical, gravitational, elastic
what is group 5A called
what is a non polar covalent bond
equally sharing of electrons (0.00-0.49)
what is the name of the law that has P1, V1, T1, P2, V2, T2.
combined gas law
what is the density of an object with a mass of 2.37g and a volume of 2.5mL
1.05g/mL
even blend of 2 or more pure substances
40.08
what is a polar covalent bond
Unequal sharing of electrons (0.50-2.00)
760 torr equals how many atms?
1
what is dimensional analysis
401 joules are equal to how many calories
959 cal
what is the name for the element Ru
Ruthenium
what is the VSEPR Theory
Valence
Shell
Electron
Pair
Repulsion
Solve: A sample of hydrogen gas has a volume of 145mL when measured at 44 degrees C and 1.47 atm. what volume would the Hydrogen sample occupy at STP.
180mL