Negative is attracted to . . .
A: Posotive .
B: Negative .
C: Not listed .
A .
100
Is Xenon a Solid , liquid , or gas ?
Gas .
100
Define chemistry ?
The study of matter and the changes that it undergoes .
100
What is the charge of Alpha .
2+ .
100
In chemistry what do T , P , V represent ?
T = Temperature .
V = Volume .
P = Pressure .
200
The three states of matter are ?
Solid , liquid , gas .
200
How many valence electrons does Bismuth have ?
5 valence electrons .
200
What is the SI unit of heat and energy ?
Joules .
200
Isotopes of atoms with unstable nuclei are called _______ ?
Radioisotopes .
200
What is KHCO3 + H3PO4 + K2HPO4 + H2O + CO2 . . . Balance ?
2KHCO3 + H3PO4 + K2HPO4 + 2H2O + 2CO2 .
300
What element has the atomic number of 29 ?
Copper .
300
The S-Block occupies what rows vertically on the periodic table ?
Rows 1 & 2 .
300
Fill in the blank . . .
Kelvin is the base unit of ______ ?
Temperature .
300
What is the nuclear symbol for Cobalt ?
60/27 Co .
300
How many moles of Al are in 2.16 mol of Al2O3 ?
4.32mol Al .
400
Matter is defined as anything that . . .
A: Exist in nature .
B: Is solid to touch .
C: Is found in universe .
D: Has mass and takes up any kind of space .
D .
400
What part of the periodic table has the most electronegativity ?
The upper left corner .
400
Two or more compounds that have the same molecular formula but have different molecular structures . . . That definition defines what word ?
A: Isomers .
B: Ions .
C: Isotopes .
D: Not listed .
Isotopes .
400
All nuclei with 83 or more protons are ?
Radioactive .
400
What is the molar mass of PbSO4 ?
303.2 g/mol .
500
How many meters are in one kilometer & in one decimeter ?
There are 1,000 meters in one kilometer & 10 meters in one decimeter .
500
What two elements increase in atomic number but decrease in atomic mass . . .
A: Li - Be .
B: Co - Ni .
C: Pd - Ag .
B .
500
Define solute ?
A substance that dissolved in a solution .
500
The approximate energy of alpha is how many Mev's .
5 Mevs .
500
What is the electronegativity difference between Cl & Na ?