Mixture, Compounds And Atoms

27 Questions  I  By Cancerred
Based on science knowledge.

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