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Mixture, Compounds And Atoms

27 Questions  I  By Cancerred
Mixture, Compounds and Atoms
Based on science knowledge.

  
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1.  What is Distillation?
A.
B.
C.
2.  What is Filtration?
A.
B.
C.
3.  Which bond exchanges electrons?
A.
B.
4.  The first energy level is closest to the nucleus and can hold up to ____ electrons.
A.
B.
C.
5.  Atoms ____ to have a filled outermost energy level
A.
B.
6.  What is Evaporation?
A.
B.
C.
7.  Compounds can be separated by:
A.
B.
8.  A pure substance made up of two or more elements chemically combined in a fixed proportion can be sub-divided by chemical means only is a
A.
B.
9.  This is the solid remaining in filter paper after filtration.
A.
B.
10.  Separating funnel 
A.
B.
C.
11.  This is the liquid which passes through filter paper during filtration.
A.
B.
12.  Which of the following describes what happens when an atom becomes an ion with a 2– charge?
A.
B.
C.
13.  Which of the following is a pure substance made up of one type of atoms?
A.
B.
C.
14.  Mixtures can be separated by:
A.
B.
15.  A negative ion is a:
A.
B.
16.  An impure substance made up of two or more elements or compounds both mechanically mixed into any proportion and can be further sub-divided by physical means is a
A.
B.
17.  Which of the following particle has no charge?
A.
B.
C.
18.  Which particle orbits the nucleus?
A.
B.
C.
19.  What is paper chromotography?
A.
B.
20.  Which of the following particle has a positive charge?
A.
B.
C.
21.  This type of mixture has a composition that is not uniform.
A.
B.
22.  This type of mixture has the same composition through out.
A.
B.
23.  The second energy level can hold up to ____ electrons.
A.
B.
C.
24.  Atoms bond by ____ electrons.
A.
B.
C.
D.
25.  Most atoms form bonds using only the electrons in their ____ energy level.
A.
B.
26.  A positive ion is a:
A.
B.
27.  Atoms are composed of :
A.
B.
C.
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