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5 White_Trey PS > Test - Unit 2 Matter > Flashcards

Test - Unit 2 Matter Flashcards

1
Q
  1. The maximum amount of solute that can be dissolved in a given amount of solvent is its…
A

Solubility

U2/C4 - Solutions (pg. 31)

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2
Q
  1. When two or more substances are physically combined, the result is a…
A

Compound

U2/C1 - Classification of Matter (pg. 2)

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3
Q
  1. In which phase of matter are the molecules of the substance farthest apart from each other?
A

Gas

U2/C3 - States of Matter (pg. 27)

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4
Q
  1. A flask containing molecules of gas A and a separate flask containing molecules of gas B are both at the same temperature. Gas A and B must have the same…
A

Average kinetic energy

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5
Q
  1. Which term best describes when particles escape from the surface of a liquid and become gaseous?
A

Evaporation

U2/C3 - States of Matter (pg.28)

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6
Q
  1. Milk, paint, and mayonnaise are all examples of…
A

Heterogeneous mixtures

U2/C1 - Classification of Matter (pg. 3)

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7
Q
  1. Is trail mix a homogeneous or heterogeneous mixture?
A

Heterogeneous mixture

U2/C1 - Classification of Matter (pg. 3)

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8
Q
  1. flammability of a substance
A

Chemical Property

U2/C2 - Properties of Matter (pg. 10)

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9
Q
  1. The solubility of which salt is the least affected by temperature?
A

Sodium Chloride (NaCl)

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10
Q
  1. Label A, C, and F on the states of matter picture to the right.
A

A: Evaporation
F: Heat of Fusion

U1/C3 - States of Matter (pg. 28)

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11
Q
  1. Iron and oxygen react to form rust. What will happen to the mass of the rust compared to the mass of the iron and oxygen before the reaction?
A

Mass cannot be lost, even when a chemical reaction happens. Matter is neither created or destroyed during a chemical change. (Law of Conservation of Matter)

U2/C2 - Properties of Matter (pg. 11)

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12
Q
  1. Name one similarity between compounds and homogeneous mixtures and one difference.
A
  1. Compounds are pure substances and they are the same throughout. Since they are the same throughout it makes them a homogeneous mixture.
  2. Compounds are substances which can be formed by chemically combining two or more elements. A homogeneous mixture is substances formed by physically mixing two or more substances.

U2/C1 - Classification of Matter (pg. 2,3)

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13
Q
  1. Explain how salt dissociates (dissolves) in water. Be specific.
A

Water is a polar substance. Since water is polar, it makes it a great solvent. A solvent is what is doing the dissolving. Polar has oppositely charged ends. Although the overall charge water is zero, it has a slightly negative side and a slightly positive side.

U2/C4 - Solutions (pg. 33)

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14
Q
  1. Using the data table to the right, determine the identity of a cube of metal that measures 1.2 cm on each side and has a mass of 18.15 grams.
A

Silver

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5 White_Trey PS (2 decks)

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