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5th Johns_Kingsley PS > Test - Bonding > Flashcards

Test - Bonding Flashcards

1
Q
  1. Would Bromine gain or lose electrons in a chemical reaction?
A

GAIN

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2
Q
  1. Are the properties of a compound different or similar to the properties of the element that form it?
A

DIFFERENT

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3
Q
  1. What is a double bond?
A

Two pairs of electrons shared between two atoms

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4
Q
  1. What is the reason why atoms of sodium and chlorine attract each other in a salt crystal.
A

Sodium has a positive charge and chlorine has a negative charge

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5
Q
  1. How are anions formed?
A

Gaining electrons

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6
Q
  1. Which is a property shared by most molecular compounds?
A

Low melting point

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7
Q
  1. How many electrons are shared between the hydrogen atoms in a molecule of H2 gas
A

2

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8
Q
  1. Ions that are made up of more than one atom are examples of….
A

Polyatomic ions

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9
Q
  1. An ionic Bond is the attraction between…
A

Oppositely charged ions

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10
Q
  1. Is the formula CO2 ionic or Covalent?
A

COVALENT

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11
Q
  1. How do atoms become positive ions?
A

Losing electrons

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12
Q
  1. When an atom gains an electron does it become positive or negative?
A

NEGATIVE

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13
Q
  1. When is a Covalent bond formed?
A

when electrons are SHARED

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14
Q
  1. In a double Covalent bond, what electrons are shared between two atoms?
A

Four two pairs of electrons

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15
Q
  1. When do chemical bonds form?
A

When valence electrons are shared and transferred between atoms

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16
Q
  1. Give the chemical formula for

Magnesium Sulfate

A

MgSO4

17
Q
  1. What is the name for CO2?
A

Carbon Monoxide

18
Q
  1. What type of bond is formed between two oxygen atoms?
A

Covalent 2 Oxygen atoms form a double bond by sharing 4 electrons between them.

19
Q
  1. In the chemical formula for an ionic compound, what item is written first?
A

Positive ion

20
Q
  1. What is a group of covalently charged atoms that act together as one charged atom?
A

Crystal

5th Johns_Kingsley PS (7 decks)

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