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tresset_1 [31]
4 years ago
15

Some life forms move so slowly that their movement can not be detected

Chemistry
2 answers:
Alex Ar [27]4 years ago
7 0

I invented those.

Welcome.

Novosadov [1.4K]4 years ago
5 0

Good to know! Thanks!

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What mass of compound must be weighed out to have a 0.0223 mol sample of H2C2O4 (M=90.04 g/mol)?
rodikova [14]
Mass of  H2C2O4 :

mm = 90.04 g/mol

number of moles : 0.0223 moles

m = n * mm

m = 0.0223 * 90.04

m = 2.007 g 

hope this helps!.

5 0
4 years ago
Write at least three characteristics of acids and three characteristics of bases. These characteristics should be what makes the
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Characteristics of acid

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3 0
3 years ago
The most active of all the chemical elements is a halogen known as
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Astatine. Because it has the smaller shell of electrons. I believe
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4 years ago
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How did atomic theory develop and change?
Agata [3.3K]
The atomic theory started with Democritus, who stated that all space was made up of indivisible particles called atoms, though Aristotles refuted that statement by saying that matter didn’t exist, he believed in the four elements: air, fire, water, and earth. Then came Dalton, who revived Democritus’s ideas and proposed the law of multiple proportions, he revived the idea that all space was made of atoms. Soon after, J.J Thompson discovered the electron by using cathode rays. Max Planck developed the quantum theory by stating that electromagnetic radiation could only be emitted in quantized form (later called quanta). Einstein furthered this idea with studies of light. Robert Millikan eventually measured the charge of a single electron. Ernest Rutherford used a gold foil experiment and discovered the nuclei, considering his alpha particles were deflected by some object. Niels Bohr made the atomic model with electrons spinning around an atom’s nucleus, Erwin Schrodinger describes how electrons have wave like properties. James Chadwick then discovers the neutron!

There ya have it!
6 0
3 years ago
Which of the following statements is true of glare control?
galina1969 [7]
The correct option is B. 
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8 0
3 years ago
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