my chemistry quiz

What is the change of state from gas to liquid called?

• Information

• Distillation

• Condensation

• Reduction

_____ is the chemical erosion of iron.

What is the smallest part of an element?

• Molecule

• Atom

• Gram

• Quark

Oxygen in it's natural state is a ______.

When do most historians think modern chemistry was founded?

• In prehistoric times

• During the Middle Ages

• In the 18th century

• During World War I

_________________ - is the arrangement of elements in the order of increasing atomic numbers.

What is the method of seperating a liquid from a mixture by boiling and condensing called?

• Distribution

• Drying

• Refining

• Distillation

What is an acid?

• An element, that contains a hydrogen atom and has a pH less than 7

• An element, that contains a hydroxide bond and has a pH more than 7

• An element, that contains a hydroxide bond and has a pH less than 7

• An element, that contains a hydrogen atom and has a pH more than 7

Fuel that is used in cars -

When does air become a liquid?

• At 0 celsius

• At 220 celsius

• At -60 celsius

• At -190 celsius