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marissa [1.9K]
3 years ago
11

Why is observational evidence important in an experiment?

Chemistry
2 answers:
irga5000 [103]3 years ago
7 0

Answer:

Observational evidence is essential for investigating the way disease affects populations, the patterns and distribution of risk within them, and the emergence of trends in health and disease over time.

const2013 [10]3 years ago
3 0

Answer:

It tests a prediction It supports the results. It asks a testable question It predicts what will happen

Explanation:

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3 years ago
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Calculate the number of moles in 8 g of water.
polet [3.4K]

Answer:

refer the above attachment

4 0
1 year ago
What are some physical means of separating something?
Alika [10]
Mixtures come in many forms and phases. Most of them can be separated, and the kind of separation method depends on the kind of mixture it is. Below are some common separation methods:
3 0
3 years ago
1. Nitrogen, oxygen, and fluorine atoms all seem pretty similar, at first. How many valence electrons does an atom of each have?
matrenka [14]
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6 0
3 years ago
Biological oxidation-reduction reactions always involve:
kondor19780726 [428]

Answer:

b. transfer of electron(s).

Explanation:

An oxidation-reduction also called a redox reaction is a

chemical reaction in which electrons are transferred of between two species of reactants. It is a chemical reaction where the oxidation number of an atom, ion, or molecule, increases or decreases by losing or gaining electrons

3 0
3 years ago
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