Chemistry Form 4 : Chemical bond

What kind of chemical bond forms between a metal and a nonmetal?

• ionic
• covalent
• fake
• metallic

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

What kind of bond forms between two nonmetals?

• ionic 
• covalent
• metallic
• fake

Tags

NGSS.HS-PS1-1

What kind of bond forms when atoms share electrons?

• ionic
• covalent
• artificial
• univalent

Tags

NGSS.HS-PS1-2

What kind of bond forms when atoms exchange electrons?

• ionic
• covalent
• artificial
• univalent

If an atom loses two electrons what charge will it have?

• -2
• -1
• +1
• +2

Tags

NGSS.HS-PS1-1

If an atom has 7 protons and 7 electrons what charge will it have?

• -2
• -1
• 0
• +2

Tags

NGSS.MS-PS1-1

What type of diagram is this?

• Lewis Dot Structure

• Bohr Model

• Alkali Diagram

• Chemical Diagram

How many valence electrons in this structure?

• 6
• 5
• 4
• 7

Tags

NGSS.HS-PS1-1

What is the basis of hydrogen bond?

• Attraction forces between hydrogen atom bonded with another hydrogen atom

• Attraction forces between hydrogen atom bonded with a high electronegativity atom (F, O, N)

• Attraction forces between hydrogen atom bonded with a high electronegativity atom (F, O, N) with atom (F, O, N) of another molecule

• Attraction forces between hydrogen atom with another hydrogen atom of another molecule

Tags

NGSS.HS-PS1-3

How do you overcome a difficulty in turning the pages of a book when the pages stick together?

• Ripping the pages until they are separated

• Shake the book until the pages separate

• Lick your finger before turning the pages

• Blow the pages as hard as you can