Chemistry: Question Preview (ID: 30102)

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Two or more substances that are together, but not chemically combined
a) Compound b) Mixture c) Element d) Molecule
Two or more different elements that are combined chemically
a) Compound b) Mixture c) Solution d) atom
How many elements are on the Periodic Table
a) About 50 b) 92 c) About 20 d) About 120
Which of the following is a compound
a) Iron b) Aluminum c) Sugar d) Oxygen
Mixtures are different than compounds because
a) Mixtures are not made of elements b) Mixtures do not contain compounds c) mixtures are not chemically combined d) mixtures always have a solute
The substance that gets dissolved in a solution is called the
a) solute b) solvent c) colloid d) molecule
An element is
a) A pure substance made of more than one type of atom chemically combined b) A pure substance made of only one kind of atom c) A combination of two or more substances that are not chemically combined d) Wind, fire, earth and water
Which of the following is not a compound
a) Water b) Salt water c) Salt d) Sugar
A chemical change occurs when
a) a compound is formed b) a mixture is made c) a substance is dissolved d) a liquid boils
In the lego activity, one lego represented
a) an element b) an atom c) a compound d) an element or an atom
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