UNIT 3- MOLECULES AND SOLUTIONS Flashcards

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1
Q

What is Ions?

A

Particles that LOST or GAINED one or more electrons. As a result they carry POSITIVE or NEGATIVE charges.

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2
Q

What is Electrolytes?

A

Substances which enable ELECTRICAL CONDUCTIVITY when dissolved in water (because they release positive and negative ions)

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3
Q

What is Electricitytic dissociation? (Also called electrolysis)

A

The process by which a substance dissociates into positive and negative ions (when dissolved in water).

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4
Q

What is the only chemical that form electrolytes? (Also called IONIC COMPOUNDS)

A

Acids, bases, and salts

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5
Q

What is the characteristics of an acids?

A
  • Release H+
  • Taste SOUR
  • They kill GERMS
  • They NEUTRALIZE bases
  • Their pH < 7
  • Turn blue litmus paper red
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6
Q

What is the formula for acids?

A

H- Nonmetal
H - Polyatomic ION

Example: HVCL, HNO3

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7
Q

What is the characteristics of Bases?

A
  • Release OH- ions
  • Taste BITTER
  • Taste SLIPPERY
  • They dissolved FATS
  • They NEUTRALIZE acids
  • Their pH > 7
  • Turns Red litmus paper blue
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8
Q

What is the formula for Bases?

A
  • Metal - OH

Ex: NaOH

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9
Q

What is a Solution?

A

A homogenous mixture made of solute and solvent

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10
Q

What is Solvent?

A

The Substance to which the solute is added, the bigger quantity

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11
Q

What is the Solute?

A

The substance that is dissolved, the smaller quantity

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12
Q

What is an Aqueous solution?

A

Solution in which the solvent is the water

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