Chemistry Diagnostic Pre-Test

It is a proposed explanation for a phenomenon based on scientific knowledge. It can be either accepted or rejected after an experiment is performed.

• Hypothesis

• Objective

• Analysis

• Conclusion

What are the 3 basic subatomic particles?

• Proton, electrode, neutron

• Photon, electrode, neutron

• Proton, electron, neutron

• Proton, electron, neutrode

The process of evaporation occurs when a substance goes from

• Liquid to solid

• Solid to gas

• Liquid to gas

• Solid to liquid

The process of filtration is commonly used to separate

• Solids from liquids

• Liquids from liquids

• Gases from liquids

An endothermic reaction is a chemical reaction that requires energy of any form to take place. Which of the following biological reactions is endothermic?

• Digestion

• Cellular respiration

• Photosynthesis

The temperature at which a substance changes from liquid to gas is called...

• Melting point

• Boiling point

• Flash point

• Gas point

How do 2 objects of the same charge interact?

• They attract each other

• They repel each other

• They don't interact

What is the name of the compound we commonly know as "salt"?

• Sodium

• Sodium chloride

• Chloride sodium

It is everything that has mass and volume

• Compound

• Atom

• Matter

• Element

A compound is a combination of 2 or more

• Atoms

• Elements

• Electrons

• Protons