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Mixture, Compounds And Atoms

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

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