Chemistry Midterm

1000

How many joules in a kilojoule

4

how many sig figs? - 190.0

3

how many sig figs - 4.50 × 10³

0

freezing point of celcius

Graduated Cylinder

?

Beaker

?

Erlenmeyer flask

?

funnel

?

ring stand

?

100

what is the boiling point of water celcius

373K

convert 100 degrees Celsius to kelvin

crucible and cover

?

lab burner

?

endothermic

absorbs energy

exothermic

releases energy

melting, vapor condensing

endothermic example

freezing, boiling

exothermic example

melting, freezing

heat of fusion

evaporation, condensation

heat of vaporization

exothermic

?

endothermic

?

Q= m * c * DeltaT

equation for specific heat

inverse

pressure and volume have a ___ relationship

direct

volume and temp have a ___ relationship

direct

pressure and temp have a ____ relationship

discovered that all atoms contain tiny negatively charged subatomic particles or electrons.

JJ Thomson

discovering the atomic nucleus, proving that the atom is mostly empty space with a tiny, dense, positively charged center where most of the mass is concentrated,

Ernest Rutherford

most known for discovering the structure of the atom

Niels Bohr