study of matter and changes that occur in matter is
What is Chemistry
100
a chart with all known elements is
What is periodic table
100
two pairs of electrons shared is
What is double bonds
100
what is the scientific notation of 1,300
What is 1x10 to the 3rd power
100
1 atm = 14.69psi. convert 28psi to atm
What is 1.91 atm 28psi x 1 atm / 14.69psi = 1.91 atm
200
condensed format for expressing really big or really small numbers is
What is scientific notation
200
substances present before the reaction takes place and the state of matter they are in is
What is reactants
200
zero degrees celsius is
What is standard temperature
200
whats 29 degrees C in Kelvin
What is 302K. 29+273=302
200
how much energy is required to heat 7.4g of water from 29 degrees C to 46 degrees C? 4.184J/g degree C
What is 526.35J 46-29= 17 Q= 4.184(7.4)(17)
300
chemical change characterixed by rearrangement or regrouping of atoms is
What is chemical reaction
300
a homogeneous mixture is
What is solution
300
the concentration of hydronium ion is greater than the concentration of hydroxide ion is
What is acidic solution
300
what is 30 degrees C in Fahrenheit
What is 86 degrees F. F=(1.80x30)+32
300
if you have 2L and its temperature is 15 degrees C what is the volume of gas if the temperature is 38 degrees C?
What is 2.16L. 15+273=288K 38+273=311, 2/288= V/311
400
system for assigning chemical names to compounds is
What is nomenclature
400
types of matter that have a fixed composition is
What is pure substances
400
the formation of a solid is
What is precipitation
400
what is the density when you have 29g and 5cm cubed
What is density= 5.8. D=M/V
400
1.5L sample of gas is at a pressure of 56torr, what will the new volume be if pressure is changed to 150torr?
What is V= .56L, 56(1.5)= 150V
500
energy that holds one water molecule to another water molecule is
What is intermolecular forces
500
energy being transported by light is
What is electromagnetic radiation
500
express the smallest whole number ratio of elements (atoms) present in the compound, simplest formula, shows the relative numbers of atoms present in the compound, ratio of atoms is
What is empirical formula
500
1 calorie = 4.184 Joules. convert 60.1 calories to Joules
What is 251.04J. 60.1cal x 4.184J / 1cal= 251.04J
500
if you have a volume of 8.56L, a temperature of 0 degrees C and a pressure of 1.5atm how many moles then?
What is PV=nRT 1.5(8.56)= n(.0821)(273), n=.573mol