Mixture, Compounds And Atoms

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