what the theoretical angle of the H-C-O bond angle in H2CO is and explain the chemistry behind why the actual H-C-O bond angle in H2CO is 122o . [3-Points]

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.

metric time was an attempt to create a standard unit of time based off of 10, but it never took off an is not included in the metric system (si)

idk what is it? is this a question that you know the answer or u dont