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2 years ago

Why do scientists publish the results of their invesigation

1 answer:

6 0

When scientists conduct an experiment and analyze the results, the next step is to write up a report that describes the experiment and the results and submit it for publication in a scientific or medical journal that is “peer reviewed.”

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Please help me answser this, its a photo o element o subscribe o coefficient

Oliga [24]

Answer:

3 atoms of (C)carbon, 5 atoms of (H)hydrogen and 2 atoms of (O)oxygen

Explanation:

i don't know what you mean by subscribe

and i don't know what a coefficient is

4 0

3 years ago

What is the expected value for the heat of sublimation of acetic acid if its heat of fusion is 10.8 kJ/mol and its heat of vapor

Dennis_Churaev [7]

Answer:

35.1 kJ/mol is the expected value for the heat of sublimation of acetic acid.

Explanation:

$CH_3COOH(l)\rightarrow CH_3COOH(g)$ ..[1]

Heat of vaporization of acetic acid = $H^o_{vap}=24.3 kJ/mol$

$CH_3COOH(s)\rightarrow CH_3COOH(l)$ ..[2]

Heat of fusion of acetic acid = $H^o_{fus}=10.8 kJ/mol$

Heat of sublimation of acetic acid = $H^o_{sub}=?$

$CH_3COOH(s)\rightarrow CH_3COOH(g)$ ..[3]

[1] + [2] = [3] (Hess's law)

$H^o_{sub}=H^o_{vap}+H^o_{fus}$

$=24.3 kJ/mol+10.8 kJ/mol=35.1 kJ/mol$

35.1 kJ/mol is the expected value for the heat of sublimation of acetic acid.

5 0

3 years ago

Write a balanced chemical equation for the standard formation reaction of liquid chloroform (CHCI).

Inga [223]

 C^1H^1C^1I^1

Explanation:

this seems already balanced

C = 1

H =1

C = 1

I = 1

8 0

2 years ago

A photon of light has a wavelength of 0.050 cm. Calculate its energy.

Harman [31]

Hope it helps :)

5 0

2 years ago

What substance is composed of one type of atom

Darya [45]

Any substance that contains only one type of atom is referred to as an element.Elements are the "building blocks" of everything. Each element only contains one type of atom. If substances carry more than one type of atom, then they are compounds.

5 0

3 years ago

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