General Chemistry Quiz

What is a natural law based on?

• Experiments

• Observations

• Intuition

• Guesses

Who concluded that the earth revolves around the sun?

• Johannes Kepler

• Isaac Newton

• Galileo Galilei

• Nicolas Copernicus

What is a tentative explanation of a natural law called?

• Theory

• Hypothesis

• Observation

• Experiment

What is the ability of a sample of matter to change in composition under stated conditions?

• Element

• Physical Property

• Chemical Property

• Compound

How many elements are there in total?

• 90

• 112

• 45

• 22

What are substances in which atoms of different elements are combined with one another called?

• Elements

• Compounds

• Mixtures

• Solutions

What is a substance made up of a type of atom called?

• Element

• Mixture

• Solution

• Compound

What has a definite shape and volume?

• Solid

• Liquid

• Plasma

• Gas

In which state of matter are atoms or molecules in close contact?

• Gas

• Liquid

• Solid

• Plasma

What is the process of observations leading to a general statement or natural law called?

• Inference

• Induction

• Deduction

• Conjecture