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