The SI System Is

question 4

Multiple Choice

The SI system is :

• A) used for scientific work
• B) based on a system of fundamental units
• C) used for engineering work
• D) an international system
• E) all of the above

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Definitions:

Nitrogen

A chemical element with symbol N and atomic number 7, essential for all living organisms and a major component of amino acids, proteins, and nucleic acids.

Molecular Ion

An ion formed by the removal or addition of an electron to a molecule during mass spectrometry.

Basic

Refers to substances that can accept protons or donate electrons, characterized by a high pH value when dissolved in water.

Amines

Organic compounds and functional groups that contain a basic nitrogen atom with a lone pair, typically derived from ammonia by replacing one or more hydrogen atoms with hydrocarbon groups.