Chemistry Knowledge
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Oil is a water-soluble material.
Incorrect
Right
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What is the name given to the change from the gaseous state to the liquid state?
Solidification
Fusion
Sublimation
Condensation
According to Rutherford the structure of atoms presents:
A nucleus with a positive and negative charge (protons and electrons).
A positively charged nucleus (protons)
A negatively charged nucleus (electrons)
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According to Dalton the atoms were:
Indivisible and Destructible.
Indivisible and Indestructible.
Divisible and Indestructible.
When two or more atoms join they form:
Molecules
Cells
Mass
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What is the name of the transformation from solid water to liquid?
Fusion
Vaporization
Condensation
Solidification
What is matter like water or your body's skin made of?
Hydrogen
Carbon
Oxygen
Atom
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The water molecule is composed of:
one oxygen atom and two nitrogen atoms.
One carbon atom and two oxygen atoms.
one hydrogen atom and two carbon atoms.
one oxygen atom and two hydrogen atoms.
Ions that have a positive charge are called.
Neutrons
Cations
Anions
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According to Dalton, the atom was a sphere:
massive, indivisible, indestructible and untransformable
divisible, transformable and composite
none of the above
massive, transformable and encrusted with electrons
composite, massive and destructible
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