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Unit 3a Practice Test

Last updated about 6 years ago
11 questions
Welcome to the Unit 3 Practice Test. This practice test will help you to find the answers BEFORE you take the real test. If you are struggling with anything on this test, contact your teacher and ask for information.
5

Drag the descriptions to the correct category.

Need help on this question?
Look at a periodic table: https://ptable.com/
Watch a video: https://safeshare.tv/x/ss5db639e393fa7

  • Conducts electricity
  • High melting point
  • Malleable
  • Ductile, can be pulled into wire
  • Dull
  • Malleable, can be flattened
  • Shiny
  • On the right side of the periodic table
  • Insulator
  • Describe a metal
  • Describes a non-metal
4

What is the basic unit of matter?

Don't know the answer? Look here: https://www.thoughtco.com/most-basic-building-block-of-matter-608358

4

The atomic number is the number of __________ in an atom.

Don't remember what an atom is? Try this: https://safeshare.tv/x/ss5db63ba476907
Can't remember how to find out the number? Watch this: https://safeshare.tv/x/ss5db63c7526419

4

Conservation of energy means that
Can't complete this sentence? Watch this: https://safeshare.tv/x/H6D_ViW0Ch4

4

A reaction begins with 15 grams of reactant. How many grams of products will be formed by the reaction?

Can't remember how to think about this one? Watch a chemical reaction and see what happens: https://safeshare.tv/x/ss5db640ba937df

4

Sodium explodes when it contacts water. If I have a compound that contains sodium, will it explode if it is exposed to water?

Eeeeek! I need to review the differences between a compound and an element: https://safeshare.tv/x/ss5db641d43e3d9

4

Which statement is NOT true?

Need to review what a mixture is? https://safeshare.tv/x/ss5db6434244526

1

Another way to say reactants is

Check out something that will help with this answer: https://safeshare.tv/x/ss5db6445c90c08

4

Cells combine oxygen and glucose to create energy. This is called...

Hmm what is that called? Maybe Tim and Moby can help: http://quietube7.com/v.php/http://www.youtube.com/watch?v=7dKpnxEMzyw

4

Which of the following is an example of an exothermic reaction?

I need to review the differences between endothermic and exothermic reactions: https://safeshare.tv/x/ss5db648eb6fcd5

4

During a chemical reaction

I don't really get chemical reactions... I think I better watch this quick video: https://safeshare.tv/x/H1_hSUGOpWM