Chemistry topic 1 IB

Question 1

Define deposition

Accepted Answer

Gas to solid

Question 2

Define sublimation

Accepted Answer

Solid to gas

Question 3

Define an atom

Accepted Answer

The smallest molecule of an element that still has the properties of that element

Question 4

Define an element

Accepted Answer

Made up of one type of atom

Question 5

Define a molecule

Accepted Answer

Two or more atoms with the same (or different) properties chemically bonded together, mostly non metals

Question 6

Define a compound

Accepted Answer

Two or more type of atoms chemically bonded together in fixed proportions

Question 7

Define a heterogeneous mixture

Accepted Answer

Non-uniform composition, can not see difference in mixture

Question 8

Define a homogeneous mixture

Accepted Answer

Same-uniform complex, can not see difference in mixture

Question 9

Define relative atomic mass

Accepted Answer

Masses of atoms

Question 10

Define relative molecular mass

Accepted Answer

Sum of relative atomic masses of the individual atoms making up a molecule

Question 11

Define a mole

Accepted Answer

Fixed number of particles and refers to the amount of substance, n

Question 12

Define a molecular formula

Accepted Answer

Simplest whole number ratio of the elements present in a compound

Question 13

Define the molar mass and give units

Accepted Answer

The mass of one mole of a substance, g/mol

Question 14

Define theoretical yield

Accepted Answer

Maximum amount of product that can be produced assuming all the limiting reactant has reacted

Question 15

% Yield equation

Accepted Answer

actual / theoretical

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