Quiz 6- Review Flashcards

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1
Q

Atomic mass

A

The average number of nucleons in the nuclei of the atoms of a particular element.

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2
Q

Atomic number

A

The number of protons in the nulei of the atoms

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3
Q

Element

A

A substance characterized by beibg composed of atoms all possessing the same number of protons in the nucleus.

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4
Q

Isotope

A

Ang variety of the atoms of an element, differing in the number of neutrons the atoms havf in their nuclei.

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5
Q

Mettaliod

A

A group of seven elements located in between the metals and the nonmetals in the Periodic Table of the Elements, possessing some of the properties of both.

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6
Q

Compound

A

Two or more elements chemically bonded together.

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7
Q

Heterogeneous mixture

A

A mixture in which the presence of at least two different substances is visible to the eye.

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8
Q

Homogeneous mixture

A

a solution

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9
Q

Ion

A

An atom that has gained or lost one or more electrons, and has thus aquired a net electric charge.

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10
Q

Mixture

A

A combination of substances that occurs without any chemical reaction.

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11
Q

Solute

A

A solid, liquid, or gas that is dissolved into a fluid.

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12
Q

Solution

A

A homogeneous mixture formed when one substance dissolves into another substance.

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13
Q

Solvent

A

A fluid into which a solute is dissolved to form a solution.

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14
Q

Example of a homogeneous mixture

A

An example of a homogeneous mixture is a milkshake.

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15
Q

What is an example of a heterogeneous mixture.

A

A mixture of sand and water.

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16
Q

What is an example of an element

A

Hydrogen

17
Q

What is an example of a compound

A

Water

18
Q

Substances

Tree

A

Pure substances, mixtures

19
Q

Pure substances

Tree

A

Elements, compounds

20
Q

Mixtures

Tree

A

Homogeneous mixtures, heterogeneous mixtures.

21
Q

The proccess of disolving crystalline substances.

A

Crystalline substances dissolve in polar molecules. Water molecules are polar so crystalline substances dissolve in water however oil molecules are not polar so crystalline substances dont dissolves in oil.

22
Q

What are three ways we know truth?

A

Direct observation, valid logic, revelation from God.