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Q3 Matter

QuestionAnswer
Ms. Welch makes instant Lipton pomegranate tea. The water immediately turnd red. How do you know it is a solution? The powder spread out evenly and made all of the water red.
Describe a suspension. It is a mixture with visible particles that separates easily into layers.
Describe a colloid. The substance is spread out evenly. It has midsized particles that can be seen under a microscope.
Give an example of a colloid Milk, shaving cream, or clouds
Describe a mixture Two or more different substances NOT chemically joined together.
Describe a compound. Two or more substances that are CHEMICALLY joined together to make a new, unique, substance,
How are elements arranged on the periodic table? By chemical property
What ordervare elements in on the periodic table? By atomic number
What is the atomic number? Number of protons in an element's nucleus.
What is the atomic mass? The mass of protons and neutrons added together.
Name 4 properties of metals. They conduct heat and electricity, they have luster and are shiny, they are malleable and can be rolled into sheets, they are ductile and can be pulled into wire.
What is ductility Metal can be pulled into wire
What is luster? Metal is shiny
What is malleability? Metal can be hammered or rolled into sheets
What is conductivity? Electricity and heat can move through metal.
What is a base? A pH of 8-14 is a base.
What number is the most basic? 14, the higher the number is the more basic it is. The number must be between 6-14.
What is an acid? Think of sour things with a pH 0-6
What types of things are bases? Soaps, drain cleaners
What is the pH of pure water? 7, it isn't an acid or a base, it is neutral.
Recipes are often examples of what? Mixtures
What are protons? + positive particles in an atom's nucleus
What are electrons? - negative particles floating around outside of the atom's nucleus
What are neutrons? Neutral particles in an atom's nucleus
What part of the atom takes up the most volume, space? Electrons
Where is an atom's nucleus? In the center of the atom. It is surrounded by electrons.
Give an example of a solution Instant tea, Tang, Koolaid, sugar in water, salt in water
If an acid and base are combined and they are exactly the same strength what happens? A neutral solution is the result
When elements combine to form compounds what happens? The elements join chemically to make a NEW substance with different properties
Soap and drain cleaner are examples of what? Bases
What is something with a pH of 14 A strong base
What is something with a pH of 0? A strong acid
Created by: MsLWelch
 

 



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