[ report this test ]

The Chemistry Pre- Test

This is a basic pre-test in chemistry. I should test prior knowledge of basic chemistry concepts. Please choose the best answer to each question.



1)

What is chemistry?

 
 
 
 

2)

When salt is dissolved in water, a __________ change has taken place.

 
 
 
 

3)

Which unit below can measure volume?

 
 
 
 

4)

What is the symbol for potassium?

 
 
 
 

5)

How many significant digits are in 0.00280 kg?

 
 
 
 

6)

What are the most unreactive elements called?

 
 
 
 

7)

If the mass of an object is 200.0 grams and its volume is 100.0 mL, what is its density?

 
 
 
 

8)

Chlorine, atomic #17, has how many protons?

 
 
 
 

9)

What is the molar mass for MgF2 (magnesium's mass is 24.31; fluorine's mass is 19.00)?

 
 
 
 

10)

A positive ion is known as a

 
 
 
 

11)

The chemical bond formed between to atoms sharing electrons is called

 
 
 
 

12)

How many moles are in 32.00 grams of oxygen atoms (oxygen's mass is 16.00 g/mol)?

 
 
 
 

13)

Which state of matter has a definite volume but no definite shape?

 
 
 
 

14)

Acids have a pH

 
 
 
 

15)

Who created the first periodic table in order of increasing atomic mass?

 
 
 
 

16)

All parts of the electromagnetic spectrum have the same

 
 
 
 

17)

What makes up the nucleus of an atom?

 
 
 
 

18)

What type of reaction takes place when a single compound breaks down into simpler substances?

 
 
 
 

19)

What happens to the atomic radius of an atom going down a group?

 
 
 
 

20)

What is the correct name of Fe2O3?

 
 
 
 

21)

What is the correct name for CF4?

 
 
 
 

22)

When a solid separates out of solution in a chemical reaction, it is called

 
 
 
 

23)

The Law of Conservation of Mass implies that the mass of the reactants must

 
 
 
 

24)

Calcium, atomic #20, found in group 2 on the periodic table has how many valence electrons?

 
 
 
 

25)

The sulfide ion (S 2-) has how many valence electrons? (Sulfur is atomic #16 found in group 17)

 
 
 
 


[ report this test ]

Test by: mmonistere [ edit test ]

Copyright ©2005-2017 Darrell C. Sydlo ---- Privacy Policy ---- Contact ----
NerdTests.com - Make Your Online Test or Quiz!