Isotopes of the same element have different numbers of
A protons
B neutrons
C neutrons and electrons
D protons and electrons
the answer is B neutrons
It would be 50 because if its 10km/hour just multiply (10*5=50)
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Answer:
A. the speed at which reactants change to products over a given time
Explanation:
The rate of reaction is a measure of the speed of a chemical reaction. In chemical kinetics, the speed at which the reaction occurs is the reaction rate.
- The measurement of the reaction rate is based on the disappearance of a reactant or appearance of the product with increasing reaction time.
- Rate of reaction depends on the:
- nature of reactants.
- concentration of the reactants or pressure
- temperature
- presence of catalyst
- sunlight
Answer:
Explanation:
Hello!
In this case, since the first law of thermodynamics allows us to understand how the energy behaves when heat and work are involved during a process, we can mathematically define it as:
Whereas Q is the heat added to the system, W the work done by the system and ΔU the change in the internal energy, we can notice that since 97.0 J of work are done on the system it would be negative and the given off heat is also heat due to the used convention; therefore the change in its internal energy turns out:
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