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slamgirl [31]
3 years ago
6

Much of life on Earth is based in aquatic biomes. What property of water allows life to survive in liquid water?

Chemistry
2 answers:
vodka [1.7K]3 years ago
3 0
The low vapor pressure of water preventing bodies of water from dying out. 
N76 [4]3 years ago
3 0

Answer and Explanation:

The property of water in solid state is less dense than in liquid state.

It permits ice to float above the liquid water.

Since the liquid water is above the freezing point which helps the organisms to remain alive in the liquid water.

So, the liquid water is more dense which allows life to survive in liquid water.

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"What is the change of entropy for 3.0 kg of water when the 3.0 kg of water is changed to ice at 0"
Artyom0805 [142]

Q: What is the change of entropy for 3.0 kg of water when the 3.0 kg of water is changed to ice at 0 °C? (Lf = 3.34 x 105 J/kg)

Answer:

-3670.33 J/K

Explanation:

Entropy: This can be defined as the degree of randomness or disorderliness of a substance. The S.I unit of Entropy is J/K.

Mathematically,  change of Entropy can be expressed as,

ΔS = ΔH/T ....................................... Equation 1

Where ΔS = Change of entropy, ΔH = heat change, T = temperature.

ΔH = -(Lf×m).................................... Equation 2

Note: ΔH is negative because heat is lost.

Where Lf = latent heat of ice = 3.34×10⁵ J/kg, m = 3.0 kg, m = mass of water = 3.0 kg

Substitute into equation

ΔH = -(3.34×10⁵×3.0)

ΔH = - 1002000 J.

But T = 0 °C = (0+273) K = 273 K.

Substitute into equation 1

ΔS = -1002000/273

ΔS = -3670.33 J/K

Note: The negative value of ΔS shows that the entropy of water decreases when it is changed to ice at 0 °C

4 0
3 years ago
Which of the following is the correct chemical formula for cs and br? csbr cs2br csbr2
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The correct chemical formulae is CsBr
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7 0
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The reaction that is carried out by the enzyme catalase produces __________. The reaction that is carried out by the enzyme cata
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Answer:

(a) H_{2}O   (b) CO_{2}

Explanation:

The reaction that is carried out by the enzyme catalase produces H_{2} O

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6 0
3 years ago
I answered a question correctly and someone deleted my answer without giving me any explanation. I don't know why someone would
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