The following structures is a pyrimidine. 
Definitions:
Water
Water is a transparent, tasteless, odorless, and nearly colorless chemical substance that is the main constituent of Earth's streams, lakes, and oceans, and the fluids of most living organisms.
Ions
Ions are atoms or molecules with a net electric charge due to the loss or gain of one or more electrons.
Carbon Dioxide
Carbon dioxide is a colorless, odorless gas produced by burning carbon and organic compounds and by respiration. It is naturally present in air and is absorbed by plants in photosynthesis.
Molecule
The smallest unit of a chemical substance that retains its chemical properties, consisting of two or more atoms bonded together.
Q5: Identify the type of reaction shown below.
Q15: How did Adam Smith deal with the
Q19: What is the major organic product obtained
Q26: Which of the following is the reactive
Q28: Which of the following is the reactive
Q33: Provide the structure of adenosine, a nucleoside.
Q41: The compound circled below represents a heterocyclic
Q63: What is the electrophile in the reaction
Q70: Which diene can be used to prepare
Q85: Which of the following reactions or reaction