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GalinKa [24]
3 years ago
13

How do chemists express the rates of chemical reactions

Chemistry
2 answers:
melisa1 [442]3 years ago
8 0
Reaction rate is calculated using the formula rate = Δ[C]/Δt, where Δ[C] is the change in product concentration during time period Δt.
The rate of reaction can be observed by watching the disappearance of a reactant or the appearance of a product over time.
If a reaction produces a gas such as oxygen or carbon dioxide, there are two ways to measure the reaction rate: using a gas syringe to measure the gas produced, or calculating the reduction in the mass of the reaction solution.
If the reaction produces a precipitate, the amount formed can be used to determine reaction rate by measuring how long it takes for the forming precipitate to obscure the visibility of a cross through a conical flask.

Lumen Learning
Inessa [10]3 years ago
6 0

Answer:

They expressed it as rate of change in concentration of reactants or products in a chemical reaction

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