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svet-max [94.6K]
3 years ago
12

What are three of Leonardo divinci's contributions to science?

Chemistry
1 answer:
Zielflug [23.3K]3 years ago
5 0
<span> hydraulic pumps, flying machines, and war machines.</span>
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During _____________ there are 24 hours of daylight at the North Pole.
Tresset [83]

Answer:

summer

The North Pole stays in full sunlight all day long throughout the entire summer (unless there are clouds)

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3 years ago
Identify what kind of ligand (weak or strong), what kind of wavelength (long or short), what kind of spin (high spin or low spin
anzhelika [568]

To find - Identify what kind of ligand (weak or strong), what kind

              of wavelength (long or short), what kind of spin (high spin or

              low spin) and whether it is paramagnetic or diamagnetic for

              the following complexes.

              1. [Mn(CN)6]4-

              2. [Fe(OH)(H2O)5]2

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Step - by - Step Explanation -

1.

[Mn(CN)⁶]⁴⁻ :

Ligand - Strong

Wavelength - Short

Spin - Low spin

Number of unpaired electrons = 1 ∴ paramagnetic.

2.

[Fe(OH)(H₂O)₅]²⁺ :

Ligand - Weak ( both OH⁻ and H₂O )

Wavelength - Long

Spin - High spin

Number of unpaired electrons = 5 ∴ paramagnetic.

3.

[CrCl₄Br₂]³⁻ :

Ligand - Weak ( both Br⁻ and Cl⁻ )

Wavelength - Long

Spin - High spin

Number of unpaired electrons = 3 ∴ paramagnetic.

7 0
2 years ago
How do scientists do background research on topics they have question about
Aliun [14]
They use information from other things that relate to that topic and then use that to do their research
3 0
4 years ago
PLEASE HELP ASAP TAKING A TEST!
pav-90 [236]

Answer:

As a substance changes from a solid to a liquid to a gas, its molecules first the molecules are moving fast enough, they are able to "escape." They leave the surface of the liquid as gas molecules. Evaporation is not the only process that can change a substance from a liquid to a gas. The same change can occur through boiling.

Explanation:

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Suppose you carry out a titration involving 2.50 molar NaOH and an unknown concentration of HBr. To bring the reaction to its en
givi [52]

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B

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Brainly Patrol ima stop you here

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