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dangina [55]
4 years ago
14

Why did early astronomers believe in the geocentric model?

Chemistry
2 answers:
alexandr1967 [171]4 years ago
5 0
Ptolemy was an astronomer and mathematician. He believed that the Earth was the center of the Universe. The word for earth in Greek is geo, so we call this idea a "geocentric" theory. ... This flawed view of the Universe was accepted for many centuries.
natita [175]4 years ago
4 0
Ptolemy was an astronomer and mathematician. He believed that the Earth was the center of the Universe. The word for earth in Greek is geo, so we call this idea a "geocentric" theory.
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The heaviest known noble gas metal is radon, atomic number 86. part a find the atomic numbers of the as yet undiscovered next tw
polet [3.4K]
Yuri Oganessian has already discovered the next noble gas at atomic weight 118, (which is 86 plus 32). The next most likely, if ever encountered, should be 150 (which is 118 plus 32) or at 168 (which is 118 plus 32 plus 16).
6 0
3 years ago
Denumiți ionul produs în soluție atunci când de adaugă acizi în apa​
svet-max [94.6K]

Answer:

Ionul de hidroniu este un factor important atunci când avem de-a face cu reacții chimice care apar în soluții apoase. Concentrația sa în raport cu hidroxidul este o măsură directă a pH-ului unei soluții. Se poate forma atunci când un acid este prezent în apă sau pur și simplu în apă pură. Formula chimică este H3O +

Explanation:

The hydronium ion is an important factor when dealing with chemical reactions that occur in aqueous solutions. Its concentration relative to hydroxide is a direct measure of the pH of a solution. It can be formed when an acid is present in water or simply in pure water. It's chemical formula is H3O+

marke me as brainliest  please

3 0
3 years ago
Which of these is a biomass energy source the sun sugarcane natutal gas water
mixer [17]

I believe the answer is sugarcane

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3 years ago
Why is cold air cold?
Sholpan [36]

Explanation:

Energy makes molecules in the air move faster and expand, decreasing density. The opposite is true for cold air. Molecules are closer together, and absorb less energy.

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An organic molecule is likely to contain all of these elements except: Answer C H O Ne N
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