Which group of reactive metals is located in Column 1 of the periodic table?
Chemistry MCQs
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What defines an atom’s mass number?
What does the pH scale measure?
What substance speeds up a reaction without being consumed?
Which law states mass is neither created nor destroyed?
Which subatomic particle carries a positive charge?
Which group of elements is known for having full outer electron shells and low reactivity?
What is the term for a pure substance formed when two or more different chemical elements are chemically bonded together in fixed proportions?
The chemical process where a substance transitions directly from the solid state to the gaseous state, bypassing the intermediate liquid state, is specifically known as what?
What is an atom with a net electrical charge called?
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