Chemistry Review Extraordinary

An aqueous solution of acids causes red litmus paper to turn blue.

• False

• True

A coefficient tells the lowest whole number ratio of compounds in a given chemical reaction.

• True

• False

The modern periodic table is arranged by increasing atomic number of the elements.

• True

• False

The number of electrons in a main orbital depends on the orbital’s shape.

• True

• False

A cation is a negatively charged atom.

• True

• False

Safe laboratory practices should be followed by all chemists and other scientists

• True

• False

A double bond has a pair of electrons

• True

• False

The element, neon, with the electron configuration 1s2s2p, will not form a chemical bond with another element, oxygen

• True

• False

The arrow in a chemical equation means “ is equivalent to”.

• True

• False

Natural Orange juice is a heterogeneous mixture

• True

• False