Post on 14-Dec-2015
transcript
Show us what you know!
True/False Particles Definition
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400 400 400 400Double Jeopardy Final Jeopardy
Shorthand
1.1 False, homogeneous
• When sugar is dissolved in water it makes a heterogeneous mixture
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1.2 True
• When rain drops condense from the vapor in clouds it is a physical change
1.3 False, some are from Latin names
• A chemical symbol always starts with the first letter of the element’s name
1.4 False, chemical change
• Two substances mixed together forming flecks of solid is simply a phase change
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2.1 sjsjsjklfljdlkjljsdlkjids
• Draw an illustration of the shorthand: H2O
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answer!
O
HHO
HH
2.2 2 hydrogen, 1 sulfur, 4 oxygen
• Name each element that makes up H2SO4 and tell how many atoms of each
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2.3 c.They spread apart
• When copper sulfate is dissolved in water
• A. copper sulfate molecules disappear• B. a new substance is formed• C. copper sulfate molecules spread
apart• D. it won’t dissolve
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2.4 They break apart and/or recombine
• What happens to the particles in a chemical change?
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3.1 Particles in a mixture are not all
the same• In a(n) ________, the fracture
is caused by horizontal shear and movement is mainly horizontal.
3.2 they are all molecules that are
exactly alike
• What is true of the particles in a compound?
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3.3 Particles in a mixture are not all the same
• On a particle basis, explain why a mixture is not a pure substanceI know
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3.4 2 atoms of oxygen chemically bonded to 1
carbon atom
• What exactly does the subscript 2 mean in the formula CO2?
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4.1 heterogeneous
• What type of mixture is trail mix?
4.2 matter is neither created nor destroyed in a physical or
chemial change
• What does the Law of Conservation of matter state?
4.3 smallest particle of an element that still has its
properties
• Define atom
4.4 a pure substance made of more than one element
Define compound
Define mass and explain what happens to the mass during a chemical or physical change
Amount of matter in an object – stays same