3872593
Descripción
Test por Sarah HERED, actualizado hace más de 1 año
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Creado por Sarah HERED
hace más de 8 años
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Pregunta 1
Pregunta
The periodic table is made out of compounds.
Respuesta
- True
- False
Pregunta 2
Pregunta
An element is made out of:
Respuesta
-
One type of atom
-
More than one type of atom
Pregunta 3
Pregunta
An element and a compound is made out of more than one type of atom
Respuesta
- True
- False
Pregunta 4
Pregunta
Air is a compound
Respuesta
- True
- False
Pregunta 5
Pregunta
The periodic table has
Respuesta
-
more non-metals, they are on the right side
-
more metals, they are on the left side
-
more non-metals, they are on the left side
-
more metals, they are on the right side
Pregunta 6
Pregunta
Carbon dioxide:
Respuesta
-
CO2
-
C2O
Pregunta 7
Pregunta
H20:
Respuesta
-
water
-
hydrogen
Pregunta 8
Pregunta
MgO
Respuesta
-
Magnesium oxygen
-
Magnesium oxide
Pregunta 9
Pregunta
A molecule is made out of compounds
Respuesta
- True
- False
Pregunta 10
Pregunta
An atom is
Respuesta
-
the smallest particle of any substance
-
the smallest particle of any atom
Pregunta 11
Pregunta
In a compound, you can vary the amount of each substance
Respuesta
- True
- False
Pregunta 12
Pregunta
A compound:
Respuesta
-
Elements are joined and a separation is easy
-
Elements are not joined and a separation is easy
-
Elements are not joined and a separation is only possible by a chemical reaction
-
Elements are joined and separation is only possible by a chemical reaction
Pregunta 13
Pregunta
In a compound, the property is different from the elements it contains
Respuesta
- True
- False
Pregunta 14
Pregunta
In a mixture, you can vary the amount of each substance, the substances are joined and the substances are "easy" to separate.
Respuesta
- True
- False
Pregunta 15
Pregunta
Choose one answer here that is not a separation method.
Respuesta
-
Distillation
-
Density
-
Filtration
-
Evaporation
-
Chromatography
-
Extraction
Pregunta 16
Pregunta
In distillation and extraction, the difference is the ability to dissolve.
Respuesta
- True
- False
Pregunta 17
Pregunta
The difference in particle size
Respuesta
-
Distillation
-
Density
-
Filtration
-
Evaporation
Pregunta 18
Pregunta
Difference in boiling point
Respuesta
-
Distillation
-
Filtration
-
Evaporation
Pregunta 19
Pregunta
Chromatography:
Respuesta
-
difference in boiling point
-
difference in the ability to dissolve
Pregunta 20
Pregunta
How many atoms fit on the point of a needle?
Respuesta
-
A billion
-
A hundred
-
Ten
-
A million
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