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The () sign in a chemical reaction signifies that a substance is being added or combined with another substance.
Catalyst is the substance that speeds up a chemical reaction without being consumed in the process.
These are called catalysts.
These are called catalysts.
A catalyst
substance causing a chemical reaction without itself being affected
catalyst
phisical change
substance causing a chemical reaction without itself being affected
A catalyst is a substance that speeds up a chemical reaction by lowering the activation energy needed for the reaction to occur, without being consumed or permanently altered in the process.
A substance that accelerates a chemical reaction is called a catalyst. Catalysts work by lowering the activation energy needed for a reaction to occur, which speeds up the reaction without being consumed in the process.
A substance that speeds up a chemical reaction without being consumed is called a catalyst. Catalysts lower the activation energy needed for a reaction to occur, allowing it to proceed faster, but they remain unchanged at the end of the reaction.