| Lab Basics | Matter Matters! | Matter Still Matters! | It's Element-ary! | Periodic Properties |
|---|---|---|---|---|
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What is the place you dispose of broken glassware?
Broken glassware box
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What is matter?
Anything that has mass and takes up space.
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What is the density of water?
1.0 g/cm3
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What is the way the periodic table is organized?
Increasing atomic number.
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What are columns in the periodic table?
Families.
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What is the first thing you do when starting a lab investigation?
Read the procedure.
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What are ways to describe matter?
Mass, weight, volume, density, etc.
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What is density?
Mass in a given volume.
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What is the atomic number?
Number of protons.
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What are rows in the periodic table?
Periods.
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What is a benefit?
Something that makes a lab model useful.
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What are two types of mixtures?
Homogeneous and heterogenous.
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What are reasons for a greater density?
Particles more massive or packed more tightly in a substance.
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What is atomic mass?
Number of protons plus neutrons.
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What are properties of metals?
Luster, conductivity, malleability, ductility.
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What is a limitation?
Something that keeps a model from being perfect.
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What are chemical properties?
Properties observed when a new substance is being produced.
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What is the Tyndall effect?
The property of a colloid, where light is scattered throughout an entire substance because of the size of its particles.
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What is Rutherford's gold foil experiment?
Investigation that showed there was mostly empty space in an atom with a positive center.
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What are the least reactive nonmetals?
Noble gases.
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What is the main reason to follow lab safety rules?
To keep everyone safe.
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What are indicators of a chemical change?
Color change, odor change, appearance of a gas, or flame/sparks.
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What is the effect of temperature on density?
Particles spread out, leaving more space between them.
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What is in the outermost layer of the electron cloud and responsible for an atom's reactivity?
Valence electrons.
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What are the most reactive metals?
Alkali metals.
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