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3 years ago

Which statement best compares coastal ecosystems to open ocean ecosystems?

2 answers:

7 0

The answer is: Coastal ecosystems have more sunlight, more nutrients, and higher levels of productivity than open ocean ecosystems.

Coastal ecosystems are areas where land and water join (bays, estuaries, salt marshes, mangroves, wetlands).

In coastal ecosystems live many different types of plants and animals.

The ocean is divided into four major zones: the intertidal, neritic, oceanic and abyssal, each zone includes several ecosystems, which have adapted to specific habitats.

Anit [1.1K]3 years ago

4 0

Coastal ecosystems have more sunlight, more nutrients, and higher levels of productivity than open ocean ecosystems. These areas are shallow (lots of light) and close to river mouths (bringing high amounts of nutrients)

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What are the other types of particles that make up a water particle?

Neko [114]

Answer:Well, if you mean atoms, it has 2 Hydrogen atoms and 1 Oxygen.

Explanation:Water is H20 therefore, it has 2 Hydrogen atoms and 1 Oxygen. Water isn't made up of particles, they are made of atoms.

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3 years ago

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Calculate to three significant digits the density of chlorine pentafluoride gas at exactly and exactly . You can assume chlorine

slega [8]

Answer:

Density is 6.16g/L

Explanation:

... at exactly -15°C and exactly 1atm...

Using general gas law:

PV = nRT

We can find density (Ratio of mass and volume) in an ideal gas as follows:

P/RT = n/V

To convert moles to grams we need to multiply the moles with Molar Weight, MW:

n*MW = m

n = m/MW

P/RT = m/V*MW

P*MW/RT = m/V

Where P is pressure: 1atm;

MW of chlorine pentafluoride: 130.445g/mol

R is gas constant: 0.082atmL/molK

And T is absolute temperature: -15°C+273.15 = 258.15K

Replacing:

P*MW/RT = m/V

1atm*130.445g/mol / 0.082atmL/molK*258.15K = m/V

6.16g/L = m/V

<h3>Density of the gas is 6.16g/L</h3>

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3 years ago

An unknown metal displaces cadmium (Cd) from solution but does not displace chromium (Cr). Using the activity series, determine

adell [148]

I found this is the order of activity in Internet

Mn>Zn>Cr>Fe>Cd>Co>Ni>Pb

You can see that Fe is between Cr and Cd

Cr is more active than Fe and Fe is more active than Cd.

The Fe will displace Cd but not Cr.

Answer:Fe

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3 years ago

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Be sure to answer all parts. Rank the following groups in order of decreasing priority: A. −COOH B. −H C. −NH2 D. −OH

mario62 [17]

Explanation:

More is the mass of directly attached atom more will be the priority of the group attached to the alkyl or aryl chain.

Atomic mass of oxygen is 16, nitrogen is 14, carbon is 12, and hydrogen is 1.

This means that as the atomic mass of oxygen is greater than rest of the given atoms. So, priority will be given to the oxygen atom.

Thus, we can conclude that the given groups are placed in order of decreasing priority as follows.

-OH > $-NH_{2}$ > -COOH > -H

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3 years ago

The best way to learn is through questioning. Explain in full sentences please..

Zarrin [17]

The best way to learn is through questioning because it focuses your mind on the topic and gets you thinking about aspects of the concept that may not have been mentioned to you by the instructor. Questions also help you clarify any confusing information that you may have received.

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3 years ago