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Laabri

7th 2.1 Vocab

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Last updated almost 3 years ago
23 Nsɛmmisa
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Asemmisa {{asɛmmisaAhyɛnsode}}
1.

activation energy: the minimum amount of energy required to initiate a ; written as Ea and measured in

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2.

The letter "a" represents and "b" represents .

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3.

chemical bond: the that hold atoms together

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4.

The three main types of chemical bonds exist are

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5.

Select all of the scenarios that describe a chemical change:

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6.

chemical property: a characteristic of a substance that is measurable or during a chemical reaction; includes , heat of combustion, , etc.

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7.

law of conservation of mass: a fundamental principle of science stating that mass cannot be in a closed system through ordinary chemical or physical means

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8.

Select all of the scenarios that describe a physical change

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9.

physical property: a characteristic that can be (intensive) or (extensive) that is used to describe matter and can be observed or measured without changing its composition

Asemmisa {{asɛmmisaAhyɛnsode}}
10.

Sort the physical properties as intensive or extensive.

  • length

  • mass

  • odor

  • volume

  • density

  • texture

  • color

  • melting point

  • Intensive Properties

  • Extensive Properties

Asemmisa {{asɛmmisaAhyɛnsode}}
11.

precipitate: solid that have been separated from a

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12.

Select the indicators of a chemical change:

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13.

product: the that are formed during a reaction

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14.

reactant: the present before a occurs

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15.

In the diagram above, "a" represents a , "b" represents a , and "c" represents the .

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16.

solute: a substance that has the ability to be by a to create a

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17.

Sea water is salty because it has dissolved salts. Salt is the in sea water.

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18.

When water and sugar are mixed together, the sugar dissolves into the water. The in this case would be the solvent, and the (the substance being dissolved) would be the solute.

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19.

solution: a in which a solid and a liquid or two liquids are mixed so evenly, that it is not possible to see the separate particles

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20.

The ocean is a solution of and other in water.

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21.

solvent: the substance that another substance

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22.

is the universal solvent.

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23.

Sugar dissolves when mixed with water. is the solvent.