Fundamentals of Chemistry for Engineers

What are the classifications of matter by composition?

• Solid, Liquid, and Gas

• Mixtures and Pure Substances

• Homogenous and Heterogenous

• Compounds and Elements

What are the classifications of matter by state?

• Solid, Liquid, and Gas

• Mixtures and Pure Substances

• Homogenous and Heterogenous

• Compounds and Elements

What is the most abundant gas in the atmosphere

• Nitrogen

• Oxygen

• Argon

• Carbon Dioxide

How many protons are in

• 33

• 34

• 35

• 36

How many electrons are in

• 33

• 34

• 35

• 36

A sub-atomic particle responsible for chemical bonding.

• Electron

• Protons

• Neutrons

• Valence Electron

Studying chemistry involves three levels of understanding, which is NOT included in the category?

• Microscopic

• Macroscopic

• Analytic

• Symbolic

Aspirin is often used to treat pain, fever and inflammation. Whether it is synthesized or extracted from plants like willow bark and spiraea contains 60 % Carbon, 4.5 % Hydrogen, and 35.5 % oxygen. Aspirin is most likely to be;

• Solution

• Compound

• Mixture

• both A and B

What thermodynamic reaction involves the release of energy of the system to the surrounding?

• Exothermic Reaction

• Endothermic Reaction

How many significant figures are in 0.0320 m?

• 5

• 2

• 3