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☆☆☆☆☆Endothermic is when a reaction requires energy to be put in for it to run and exothermic is when a reaction releases energy.
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CHEMiCAL SyMBOlS
Nearly always, but there are compounds which formed endothermically, so their decomposition gives out energy.
Both conduction and convection. Conduction involves the small movements of individual particles, convection can be on a much larger scale with a hot liquid or gas rising and a cool liquid or gas dropping.
Exothermic Reaction
expand and grow frow larger
No, on the right of the arrow in a chemical reaction is called a product. The reactant is on the left.
balanced equation
The number in front of a chemical formula is called a coefficient.
False,Only coefficients can be changed in order to balance a chemical equation. Subscripts are part of the chemical formula for reactants or products and cannot be changed to balance an equation.
the melted rock called magma is less dense than a solid rock
