Chemistry is important to society and industry because elements and their compounds make up the world in which we live. It is important to know as much as we can about these vital parts of daily life, whether we use them in the workplace or simply think a little more about the chemical reaction taking place every time we inhale.
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Ammonia is called Ammonia only in chemistry. While writing reactions, we use its symbol NH(3).
The two main branches of chemistry are organic chemistry, which studies carbon-containing compounds, and inorganic chemistry, which focuses on non-carbon compounds. Other branches include physical chemistry, analytical chemistry, and biochemistry.
The IB Chemistry SL Paper 3 exam is 1 hour and 15 minutes long.
IB Chemistry HL Paper 3 exam is typically 1 hour and 15 minutes long.
2Li in chemistry typically refers to two lithium atoms. Each lithium atom has 3 protons in its nucleus and typically 3 electrons to balance the charge.