Curriculum
Course: Science — First Preparatory
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Curriculum

Science — First Preparatory

Unit 1: Matter

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Unit 2: Forces

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Unit 3: Life

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Unit 4: Earth and Space

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Quiz

Chemical Bonds — Lesson quiz

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  • Questions count: 2
  • Passing grade: 60%
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1.
What type of bond is in sodium chloride NaCl?
A covalent bond
A metallic bond
A hydrogen bond
An ionic bond
2.
How many pairs of electrons are shared in a nitrogen molecule N₂?
One pair
Two pairs
Three pairs
Four pairs
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