Mixtures
Compounds
Elements
Matter
Random
100
A ___________ is a combination of two or more substances that keep their own characteristics.
What is a mixtures.
100
A ___________ can be broken down into simpler substances by chemical change.
What is a compound.
100
Elements and compounds are both _______ substances.
What are pure.
100
In which classification of matter are the components chemically combined?
What is a compound.
100
An element that may have properties of both metals and nonmetals is called a __________.
What is a metalloid.
200
In a saltwater solution, the salt is the _________.
What is the solute.
200
Compounds can be broken down by what type of change?
What is chemical change.
200
Elements consist of only _______ kind of atom.
200
Filtration can be used to separate a _________.
What is a suspension.
200
True or False: Elements and compounds are both examples of homogeneous matter.
What is true.
300
A combination of substances in which the appearance and properties are the same throughout is a _______________ mixture.
300
True or False: A mixture is a compound.
What is False.
300
Elements that are brittle and dull are ________.
What are non-metals.
300
Blood, air, and carbon dioxide are all mixtures.
What is false.
400
A measure of the amount of solute dissolved in a solvent is a ____________.
What is the concentration.
400
Compounds always contain the same _________ of its component (original) atoms.
What is ratio.
400
True or False: An element can be broken down by a chemical change but not by a physical change.
What is False...an element cannot be broken down by either a chemical or physical change.
400
Iron, which has the symbol FE, is a(n) ___________.
What is an element.
400
A solvent is: a) a substance in which a solute is dissolved. b) the substance that is dissolved to form a solution. c) the substance that is the solution. d) the substance that is not dissolved.
What is A - the substance in which a solute is dissolved.
500
Which type of mixture is heterogeneous and has particles that are large enough to settle to the bottom?
What is a suspension.
500
What is the formula compound for ammonia gas?
What is NH3.
500
Elements can exist in these two types of ways:
What are atoms and molecules.
500
A solution is a mixture that: A) is always liquid B) is homogeneous with extremely small particles that are evenly distributed C) Is flammable D) is heterogeneous with particles that will settle to the bottom.
What is B - is homogeneous with extremely small particles that are evely distributed.
500
Two methods of making a solute dissolve faster are:
What is crushing and heating.
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