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3 years ago

What does the salinity of sea water represent?

Chemistry

1 answer:

kap26 [50]3 years ago

4 0

Answer:

the concentration of salt dissolved in the ocean

Explanation:

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Which would be an example of a compound? oxygen carbon dioxide sand carbon

GenaCL600 [577]

Answer:

carbondioxide is an example of compound.

4 0

4 years ago

Select a system in the human body and explain how a breakdown in the digestive system might affect the system you just chose.\

Citrus2011 [14]

The circulatory system works with the digestive system. Once the food is digested, the circulatory systems absorb and uses the nutrients in the food. If the digestive system were to break down, the circulatory will not have the nutrients it needs to sufficiently run the body.

6 0

3 years ago

Pcl5 exist but ncl5 does not.why?

jeyben [28]

N is as electronegative as Cl is. So Cl doesnt react with O, N

6 0

3 years ago

In a compound, such as CH3OH, how determine which is the central atom?

svetlana [45]

Answer:

Choose the least electronegative atom other than H.

Explanation:

A Lewis structure consists of terminal atoms and one or more central atoms.

H can be only a terminal atom because it can form only one bond.

So the central atom must be either C or O.

The central atom is the less electronegative atom: C.

So, start the Lewis structure with a central C atom.

Then attach an O atom to get C-O.

Finally, attach the H atoms.

The condensed formula often gives you a clue where they go.

The formula CH₃OH implies that there are 3 H atoms on C and one on O.

The connectivity of the atoms is then as in the diagram below.

3 0

3 years ago

When copper is bombarded with high-energy electrons, X rays are emitted. Calculate the energy (in joules) associated with the ph

Scrat [10]

Answer:

E = 12.92 × 10^(-16) J

Explanation:

Formula for energy is;

E = hc/λ

Where;

h is Planck's constant = 6.63 x 10^(-34) J.s

c is speed of light = 3 × 10^(8) m/s

λ is wavelength = 0.154 nm = 0.154 × 10^(-9) m

E = (6.63 x 10^(-34) × 3 × 10^(8))/(0.154 × 10^(-9))

E = 12.92 × 10^(-16) J

6 0

3 years ago