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Drupady [299]
3 years ago
7

Which of the following is an example of a science occupation that studies non living systems? A) physical scientists B) life sci

entists C) natural science technicians D) biological technicians
Chemistry
1 answer:
photoshop1234 [79]3 years ago
5 0

Answer:

A) physical scientists

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What type of radioactive decay will the isotopes 13B and 188Au most likely undergo?
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Answer:

b. Beta emission, beta emission

Explanation:

A factor to consider when deciding whether a particular nuclide will undergo this or that type of radioactive decay is to consider its neutron:proton ratio (N/P).

Now let us look at the N/P ratio of each atom;

For B-13, there are 8 neutrons and five protons N/P ratio = 8/5 = 1.6

For Au-188 there are 109 neutrons and 79 protons N/P ratio = 109/79=1.4

For B-13, the N/P ratio lies beyond the belt of stability hence it undergoes beta emission to decrease its N/P ratio.

For Au-188, its N/P ratio also lies above the belt of stability which is 1:1 hence it also undergoes beta emission in order to attain a lower N/P ratio.

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3 years ago
What is the origin of the name for bismuth
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The name come from the German 'Bisemutum' a corruption of 'Weisse Masse' meaning white mass. 
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What is the difference between the product and the reactant
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Answer:

Explanation:

A reactant is a substance that is present at the start of a chemical reaction. The substance(s) to the right of the arrow are called products . A product is a substance that is present at the end of a chemical reaction.

h2 + 02 = h2o

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When you place an alcohol thermometer in hot water, the
jeka94

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pressure

Explanation:

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What scientist developed the Bohr model
Yakvenalex [24]
Niels Bohr developed the Bohr model of the atom, in which he proposed that energy levels of electrons are discrete and that the electrons revolve in stable orbits around the atomic nucleus but can jump from one energy level-- or orbit-- to another.
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