3755412
Descrição
Quiz por Karen Moulton, atualizado more than 1 year ago
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Criado por Karen Moulton
quase 9 anos atrás
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Questão 1
Questão
Select all of the metals in this list.
Responda
-
hydrogen
-
mercury
-
iron
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gold
Questão 2
Questão
Which of these is an alloy?
Responda
-
iron
-
hydrogen
-
carbon dioxide
-
steel
Questão 3
Questão
Most elements are metals.
Responda
- True
- False
Questão 4
Questão
The Periodic Table of Elements is organized by [blank_start]chemical properties and atomic numbers.[blank_end]
Responda
-
chemical properties and atomic numbers.
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physical and chemical properties.
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number of protons and neutrons.
Questão 5
Questão
[blank_start]Mixtures[blank_end] are two or more substances together.
Responda
-
Mixtures
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Solutions
-
Compounds
Questão 6
Questão
Select all of the compounds listed below.
Responda
-
Carbon Dioxide
-
Water
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Sugar
-
Salt
-
O2
-
H2
Questão 7
Questão
Which of these is a molecule of a compound?
Responda
-
O2
-
CO2
Questão 8
Questão
How many atoms are in this chemical formula: 2NaHCO3?
Responda
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7
-
12
-
9
Questão 9
Questão
Solutions are mixtures.
Responda
- True
- False
Questão 10
Questão
Sugar is an element.
Responda
- True
- False
Questão 11
Questão
Which of these statements is true for all metals?
Responda
-
All metals conduct heat and are lustrous.
-
All metals conduct electricity and heat.
Questão 12
Questão
Mark all choices that state characteristics of metals. (Does not have to be true for all metals).
Responda
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are lustrous
-
can be bent without breaking
-
can be hammered without breaking
-
can not be mixed
Questão 13
Questão
When you add [blank_start]oxygen[blank_end] to iron, you get a chemical reaction which gives the product, rust.
Responda
-
oxygen
-
hydrogen
Questão 14
Questão
Another name for rust is iron oxide.
Responda
- True
- False
Questão 15
Questão
Mark all that would be evidence of a chemical reaction.
Responda
-
dissolving
-
foaming, bubbling, fizzing
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clear solution
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temperature change
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precipitate forms
Questão 16
Questão
Mark all that would be evidence of a saturated solution.
Responda
-
precipitate forms
-
solute on the bottom
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temperature change
Questão 17
Questão
Which of these would supersaturate a solution?
Responda
-
cooling it
-
heating it
Questão 18
Questão
To separate a salt solution, you must use [blank_start]evaporation[blank_end].
Responda
-
evaporation
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a filter
Questão 19
Questão
The smallest amount of sugar you can have is a/an
Responda
-
atom
-
molecule
Questão 20
Questão
The most abundant element and the most abundant compound in the human body are
Responda
-
hydrogen and carbon dioxide.
-
oxygen and water.
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