The claim that scientific knowledge is based on observation and inference is that science is always about empirical evidence , and when making observations , we can get some evidences and inference which serves a conclusion gotten on basis of evidence and reasoning.
<h3>What is scientific knowledge ?</h3>
Science knowledge serves as the knowledge that is based and focus on empirical evidence.
It should be noted that in Science disciplines their is sharing of common rules of evidence which is needed in evaluation of explanations about natural systems.
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Nitrogen exist as a diatomic molecule in the nature in gaseous state at room temperature. So, formula and symbol could be expressed as:
Answer:
Oxygen is an element.
Explanation:
Out of the choices listed, oxygen is the only element. The other choices are incorrect because air is a mixture of nitrogen, oxygen, carbon dioxide, water vapors, and some other gases; water is a compound of hydrogen and oxygen; and sodium chloride is a compound of sodium and chloride ions; meanwhile, oxygen is a pure element.
Answer:
0.96 g/cm3, and it will float!
Explanation:
I've explained how to do this before (remember me? lol), but ig I'll do it again..
By looking at the graph you can see that Object C has a mass of ~24 grams and a volume of ~25 cm3
Density = Mass/Volume -> 24 grams/25 cm3 = 0.96 g/cm3
Density of water is 1 g/cm3
Object C is less dense than water and therefore will float (just barely, though)
:)
Answer:
Yes they are found in same period
