Direct Combination or Synthesis Reaction
Metathesis or Double Displacement Reaction
Acid-Base Reaction
These are decomposition reactions.
Oxygen as most reactions have it although it could also be hydrogen
These are not chemical reactions but thermonuclear reactions.
All chemical reactions have a common structure. It must have reactants, that are the substances that you have at the beginning, and the product that are the new substances you get at the end.
- reduction - oxidation - thermal decomposition etc.
Metals rusting, wood or fuel burning, yeast fermenting sugar, and cellular respiration are common chemical reactions.
These are decomposition reactions.
Explain why energy is necessary to chemical reactions, and describe some common sources of energy.
the 3 key types of chemical reactions are synthesis, decomposition, and neutralization.
Energy is necessary for chemical reactions because it allows molecules to overcome activation energy barriers and initiate reactions. Common sources of energy for chemical reactions include heat, light, electricity, and catalysts. These sources provide the necessary energy to break existing bonds and form new ones during a chemical reaction.
Oxygen as most reactions have it although it could also be hydrogen
Wind, water and chemical reactions.
These are not chemical reactions but thermonuclear reactions.
Both involve chemical reactions
Both involve chemical reactions
Chemical reactions are abbreviated by their chemical equations.
Some signs (or evidence) of chemical change are: a gas is produced, the temperature changes, a substance disappears, a solid is formed a colour change occurs, a new odour is produced.