Definitions

Question 1

What is relative isotopic mass?

Answer 1

It is the mass of an atom of an isotope compared to 1/12 of the mass of a 12C atom.

Question 2

What is relative atomic mass?

Answer 2

It is the weighted mean mass of an atom of an element compared with one-twelfth of the mass of an atom of carbon-12

Question 3

Electronegativity

Answer 3

Electronegativity is a measure of the tendency of an atom to attract a bonding pair of electrons.

Question 4

what’s the ideal gas equation

Answer 4

pv = nrt

Question 5

What is the gas constant?

Answer 5

R = 8.31441 J/K x mol

Question 6

What is the temperature measured in , in the ideal gas equation?

Answer 6

kelvin (+273 from Centigrade)

Question 7

What volume does one mole of gas occupy at room temperature and pressure (one atmosphere) (20 degrees)

Answer 7

24 dm^3

Question 8

What is the oxidation number of hydrogen when combined with a metal?

Answer 8

-1

Question 9

What is the oxidation number of hydrogen when combined with a non metal?

Answer 9

+1

Question 10

What is disproportionation?

Answer 10

Oxidation and reduction of the same element in a redox reduction.