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Physical Sci. 4

"Mixtures, Elements, & Compounds" Review

QuestionAnswer
Two or more atoms chemically combined... Molecule
Pure substance that is made of more than one element... Compound
The substances that make up a mixture keep most of their own... Properties
An example of a homogeneous mixture is... Salt Water
An example of a heterogeneous mixture is... Concrete
An example of a homogeneous mixture is... Bronze
An example of a heterogeneous mixture is... Salad Dressing
The "best mixed" of all mixtures is.... Solution
The smallest particle of an element that has the properties of that element is a(an)... Atom
Shorthand way of representing the chemical elements... Chemical Symbols
An alloy is a... Solution of Metals
Description of a chemical reaction using symbols and formulas ... Chemical Equation
In a solution, the substance that does not appear to be the same throughout is said to be... Heterogeneous
The simplest type of pure substance is a(an)... Element
A(an) _____ is made of two or more atoms chemically bonded together... Molecule
(T/F) The substances in a mixture are chemically combined F
(T/F) According to its makeup, matter can be classified as elements, compounds, mixtures, and solids F
(T/F) A solution is a type of homogeneous mixture formed when one substance dissolves in another T
(T/F) Water is an example of an element F
(T/F) An equation can be balanced by placing the appropriate number, called a subscript, in front of the chemical symbols or formulas Coefficient
(T/F) The basic building block of matter is the compound F
(T/F) When elements combine to form compounds, their properties do not change F
(T/F) One example of a homogeneous mixture is concrete F
(T/F) Substances in a mixture keep their separate identities and most of their own properties T
(T/F) Mixtures can be separated by simple chemical means F
(T/F) Salt and sugar are insoluble in water F
(T/F) The particles in a colloid are mixed together but not dissolved T
Matter that consists of two or more substances mixed together but not chemically combined is called a(n)... Mixture
An example of a homogeneous mixtures is... Stainless Steel
In a solution, the substance being dissolved is called the... Solute
The simplest type of pure substance is a(n) Element
The chemical formula for a molecule of nitrogen is... N(2)
Atoms that exist in nature in molecules, (pairs) are referred to as _____________ elements Diatomic
Pure substances that are made of more than one element are called... Compounds
Anything that appears on the periodic table is an element and thus a ________________ Pure substance
We classify substances based on it's ___________ rather than by phase Makeup
Physical combination of substances.... Mixture
Substances in a mixture may change in __________________ Physical appearance
Substances in a mixture retain most of their own ______________ Properties
Substances within a mixture can be separated by _____________ means Physical
Substances within a mixture can be present in ______________ Any Amount
Two types of mixtures are ______________________ Heterogeneous and Homogeneous
Fog is an example of a _____________ Colloid
A foam is a colloid made up of two physical states mixed together; ________________ Gas in Liquid
A gel is a colloid made up of two physical states mixed together; _________________ Liquid in Solid
A substance that dissolves in another substances is said to be _____________ Soluble
A substance that doesn't dissolve in another substance is said to be ____________ Insoluble
The chemical symbol "Al" stands for... Aluminum
The chemical symbol "Cr" stands for... Chromium
The chemical symbol "Ca" stands for... Calcium
The chemical symbol "Mg" stands for... Magnesium
The chemical symbol "Ne" stands for... Neon
The chemical symbol "K" stands for... Potassium
The chemical symbol "Pb" stands for... Lead
The chemical formula "H2O" stands for... Water
The chemical formula "H2O2" stands for... Hydrogen Peroxide
The chemical formula "CO2" stands for... Carbon Dioxide
The chemical formula "CO" stands for... Carbon Monoxide
The chemical formula "O3" stands for... Ozone
The chemical formula "C6H12O6" stands for... Sugar
Created by: SavannahElkins
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