Mixture, Compounds And Atoms
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This type of mixture has a composition that is not uniform.
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Homogeneous
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Heterogeneous
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Based on science knowledge.
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- 2.
Atoms are composed of :
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Electrons, neutrons, protos
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Electrons, neutrons, protons
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None of above
Correct Answer
A. Electrons, neutrons, protons -
- 3.
This is the liquid which passes through filter paper during filtration.
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Filtrate
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Residue
Correct Answer
A. Filtrate -
- 4.
Which of the following particle has a positive charge?
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Neutrons
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Protons
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Electrons
Correct Answer
A. Protons -
- 5.
Which of the following is a pure substance made up of one type of atoms?
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An element
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Mixture
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Compound
Correct Answer
A. An element -
- 6.
What is Filtration?
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Separating an insoluble substance from a liquid by passing the mixture through porous paper.
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Heating to separate a soluble substance such as table salt from water
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None of above
Correct Answer
A. Separating an insoluble substance from a liquid by passing the mixture through porous paper. -
- 7.
Which of the following particle has no charge?
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Neutrons
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Protons
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Electrons
Correct Answer
A. Neutrons -
- 8.
Atoms ____ to have a filled outermost energy level
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Split
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Bond
Correct Answer
A. Bond -
- 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
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Mixture
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Compound
Correct Answer
A. Mixture -
- 10.
This type of mixture has the same composition through out.
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Homogeneous
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Heterogeneous
Correct Answer
A. Homogeneous -
- 11.
A negative ion is a:
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Anion
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Cation
Correct Answer
A. Anion -
- 12.
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
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Mixture
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Compound
Correct Answer
A. Compound -
- 13.
Most atoms form bonds using only the electrons in their ____ energy level.
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Outermost
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Innermost
Correct Answer
A. Outermost -
- 14.
Which bond exchanges electrons?
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Covalent
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Ionic
Correct Answer
A. Ionic -
- 15.
Atoms bond by ____ electrons.
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Gain
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Lose
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Share
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All of above
Correct Answer
A. All of above -
- 16.
The first energy level is closest to the nucleus and can hold up to ____ electrons.
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2
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4
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8
Correct Answer
A. 2 -
- 17.
Which of the following describes what happens when an atom becomes an ion with a 2– charge?
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The atom gains 2 electrons.
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The atom loses 2 electrons.
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The atom has a full outer shell
Correct Answer
A. The atom gains 2 electrons. -
- 18.
Separating funnel
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Separating an insoluble substance from a liquid by passing the mixture through porous paper.
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Heating to separate a soluble substance such as table salt from water
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A device to separate heavy liquids(eg. water) from lighter liquids(eg. kerosene)
Correct Answer
A. A device to separate heavy liquids(eg. water) from lighter liquids(eg. kerosene) -
- 19.
What is Distillation?
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A combination of 2 processes- evaporation followed by condensation(eg. to make pure water from seawater
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Heating to separate a soluble substance such as table salt from water
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Separating an insoluble substance from a liquid by passing the mixture through porus paper.
Correct Answer
A. A combination of 2 processes- evaporation followed by condensation(eg. to make pure water from seawater -
- 20.
The second energy level can hold up to ____ electrons.
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2
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4
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8
Correct Answer
A. 8 -
- 21.
Which particle orbits the nucleus?
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Neutrons
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Protons
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Electrons
Correct Answer
A. Electrons -
- 22.
Compounds can be separated by:
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Chemical means only
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Physical means only
Correct Answer(s)
A. Chemical means only
A. Physical means only -
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Current Version
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Mar 20, 2022Quiz Edited by
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Jan 15, 2009Quiz Created by
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