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Science, Chemical
Question | Answer |
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What is a Molecule? | a group of atoms bonded together, representing the smallest fundamental unit of a chemical compound that can take part in a chemical reaction. |
What is a Chemical Bond? | is a lasting attraction between atoms that enables the formation of chemical compounds. |
What is a Chemical Formula? | the type and amount of elements in a atom what give the name of that compound, molecule. |
What is a Compound? | a thing that is composed of two or more separate elements; a mixture. |
What is a Element? | each of more than one hundred substances that cannot be chemically inter converted or broken down into simpler substances and are primary constituents of matter. |
What is a Chemical Reaction? | a process that involves rearrangement of the molecular or ionic structure of a substance, as opposed to a change in physical form or a nuclear reaction. |
What is a Reactant? | a substance what triggers a chemical reaction. |
What is a Product? | a substance what was the outcome of a chemical reaction. |
What is the Open System? | a material system in which mass or energy can be lost to or gained from the environment. |
What is the Closed System? | can exchange energy (as heat or work) but not matter, with its surroundings. |
What is the Law of Conservation of Mass? | the principle that in any closed system subjected to no external forces, the mass is constant irrespective of its changes in form; the principle that matter cannot be created or destroyed. |