Elements
Compounds
Mixtures
pH
Metals, Nonmetals, Metalloids
100
In the periodic table, the top number represents the ________
What is atomic number?
100
The chemical formula for water
What is H2O
100
A mixture is a combination of two or more substances that are (CHEMICALLY or PHYSICALLY) combined.
Physically combined.
100

The acidity of a substance is measured as what?

What is pH

100
An element that is shiny and that conducts heat and electric current well
What is a metal
200
A pure substance that cannot be separated into simpler substances by physical or chemical means
What is an element
200
Water is called this because it is used for doing so many things
What is the universal solvent
200
Mixtures are separated through these kind of changes
What are physical changes
200
The numeric scale of the "pH scale"
What is 1-14
200
Elements that have properties of both metals and nonmetals
What metalloids
300
A substance that contains only one type of particle
What is an element
300
The only way to break down a compound is through this
What is a chemical change
300
A _____ is a mixture that appears to be a single substance but is composed of a solute dissolved in a solvent.
What is a solution
300
Has a greater concentration of OH ions, has the property of being slippery.
What is a base?
300
The ability of matter to be hammered into a thin shape Ex: aluminum foil
What is malleable
400
Elements can be classified into one of these three groups:
What are metals, nonmetals or metalloids
400
The particle that makes up elements, compounds, and mixtures.
What are atoms?
400

________ are mixtures that contain particles that you can differentiate from others. (You can see the different parts)

What are heterogeneous

400
Has a greater concentration of Hydrogen ions, has the property of tasting sharp, and sour. Ex: vinegar, lemon juice
What is an acid?
400
These elements tend to be brittle and dull in color
What nonmetals
500
Elements that share similar properties are contained within the same _______ of the periodic table
What is group?
500
Name two compounds
H20, CO2, NaCl, HCL, H2O2 (hydrogen peroxide) Fe2O3 (Iron oxide)
500
_____ and ______ substances are not considered mixtures because they are pure substances.
What are Elements and Compounds
500

Property that the pH scale measures

What is acidity or alkalinity

500
The ability to be drawn into a wire
What is Ductility
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