Chemistry Quiz

What is the scientific method?

• A process of observation and experimentation in science

• A method used to memorize scientific facts

• A method to avoid scientific research

• A technique to guess scientific outcomes

Which domain of chemistry deals with the behavior of matter at the molecular level?

• Macroscopic domain

• Microscopic domain

• Symbolic domain

• Physical domain

What is the fourth state of matter that occurs naturally in the interiors of stars?

• Solid

• Liquid

• Gas

• Plasma

What is a pure substance that cannot be broken down into simpler substances by chemical changes?

• Element

• Compound

• Homogeneous mixture

• Heterogeneous mixture

Which type of mixture has only one phase and shows the same properties throughout the sample?

• Heterogeneous mixture

• Compound

• Homogeneous mixture

• Element

What are physical properties that depend on the amount of the substance present?

• Extensive properties

• Random properties

• Intensive properties

• Chemical properties

What type of error is caused by personal error and indicates the precision of a measurement?

• Systematic error

• Random error

• Instrumental error

• Calibration error

What refers to the reproducibility of a measurement and expresses the closeness of the set of values obtained from identical measurements?

• Randomness

• Precision

• Consistency

• Accuracy

What is the slope of the linear relation between the Celsius and Fahrenheit temperature scales?

• 3

• 0.5

• 2

• 1

What is the freezing temperature of water on the Kelvin scale?

• 273.15 K

• 0 K

• 373.15 K

• 100 K