Answer:
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Explanation:
Chemical reactions often involve changes in energy due to the breaking and formation of bonds. Reactions in which energy is released are exothermic reactions, while those that take in heat energy are endothermic.
Chemical reaction, a process in which one or more substances, the reactants, are converted to one or more different substances, the products. Substances are either chemical elements or compounds. A chemical reaction rearranges the constituent atoms of the reactants to create different substances as products.
Thermal energy (also called heat energy) is produced when a rise in temperature causes atoms and molecules to move faster and collide with each other. The energy that comes from the temperature of the heated substance is called thermal energy.
Credits:
Energy Changes in Chemical Reactions | Introduction to ...
chemical reaction | Definition, Equations, Examples, & Types ...
Thermal Energy - Knowledge Bank - Solar Schools
The answer is B, density is d=m/v
12 Oxygen, 2 Aluminum, and 1 Sulfur. let me know if you need anything else.
First pictures answer should be +1
second, the answer should be the last answer. 231 Th 90
The number of atoms and properties are different int he reactants and the products.
