Quiz on Mixtures and Solutions

A ______________is a substance made up of two or more chemical components that are not chemically linked.

• mixture

• complex.

• compound

• element

A mixture is a physical blend of two or more substances that _______________.

• do not retain their properties

• retain 50% of their properties

• sometime retain their properties

• always retain their properties

The different substances mixed cannot be seen even with a microscope in a ______________.

• heterogeneous mixture

• homogeneous mixture

• colloids

• suspension.

A ______________ is a homogeneous mixture of two or more substances in a single phase.

• solution

• suspension

• colloid

• milk

14 – Karat gold is an alloy of gold with ___________________.

• steel and brass

• nickel and chromium

• silver and copper

• iron and nickel

14 – Karat gold is ____________ gold.

• 75%

• 58.3%

• 64%

• 86%

Brass is an alloy made from ______________________.

• iron and zinc

• zinc and silver

• silver and nickel

• zinc & copper

Particles in ______are over 1000 nm in diameter. i.e.,1000 times as large as atoms, molecules or ions.

• solutions

• colloids

• suspensions

• plasma

Particles between 1 nm and 1000 nm in diameter may form ___________.

• solutions

• colloids

• suspensions

• plasma

_____________ show Tyndall effect.

• solutions

• colloids

• suspensions

• plasma