Keep an emergency kit and fresh water in your car in the event of .
Richard diluted concentrated NaOH to form a 5.00 × 10-2 M solution. What was the pH of the NaOH solution that Richard made?

your answers are a,b,,e and f

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answer : a model is often used to explain and make things easier to understand when any scientific topic needs to be demonstrated and explained.

as in this case where a scientist wants to use a model to present the results of his detailed scientific investigation. he should do it as it will him to make the audience understand the concept in a much better way. also, it can be changed according to new scientific understandings.

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explanation:

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