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hodyreva [135]
4 years ago
13

Frozen water is less dense than liquid water, allowing lake organisms to survive winter.

Chemistry
2 answers:
klasskru [66]4 years ago
7 0

True.

hope this helps!

irina1246 [14]4 years ago
4 0

Answer: True.

Explanation: The density of ice is less than the density of water, this is the reason why the ice floats on water. The frozen ice is about 9% less denser than the water in liquid state.

The ice seems to be on the top of the water bodies as it is lighter. The organisms seems to use this property of water and lives inside the lakes.The water is not that cold as it is on the surface so, it provides an optimum temperature for the organism to stay inside the water bodies.

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In the reaction below green chlorine gas and brown iodine chloride forms yellow iodine trichloride Cl2 (g) + ICl (l) ⇌ ICl3 (s)
Keith_Richards [23]

Answer:

B. It will become more green and brown

Explanation:

Le Chateliers principle states that when a constraint such as change in concentration, volume, pressure or temperature is imposed on a reaction system at the equilibrium, the equilibrium position will shift in such a way as to annul the constraint. Let us see how this applies to the equation under consideration.

If the system is at equilibrium and more ICl3 is added to the system, the equilibrium will shift towards the left hand side (more reactants are formed). This implies that the colour of the system will become more green and brown since there are more reactants now in the system.

6 0
3 years ago
24 how many moles are in 2.04 × 1024 molecules of h2o?
Sergeeva-Olga [200]
The answer is 3.39 mol.

<span>Avogadro's number is the number of molecules in 1 mol of substance.
</span><span>6.02 × 10²³ molecules per 1 mol.
</span>2.04 × 10²⁴<span> molecules per x.

</span>6.02 × 10²³ molecules : 1 mol = 2.04 × 10²⁴ molecules : x
x = 2.04 × 10²⁴ molecules * 1 mol : 6.02 × 10²³ molecules
x = 2.04/ 6.02 × 10²⁴⁻²³ mol
x = 0.339 × 10 mol
<span>x = 3.39 mol
</span>
8 0
3 years ago
Atomic mass unit is calculated with reference to
Gennadij [26K]
An atomic mass unit is defined as a mass equal to one twelfth the mass of an atom of carbon-12. The mass of any isotope of any element is expressed in relation to the carbon-12 standard. For example, one atom of helium-4 has a mass of 4.0026 amu. An atom of sulfur-32 has a mass of 31.972 amu.
8 0
3 years ago
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How many atoms of nitrogen and oxygen are present in a molecule of dinitrogen pentoxide?
Kitty [74]

Answer: 7

Explanation: oxygen has 5 atoms and nitrogen has 2. Put them together and you get 7

6 0
3 years ago
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They dump large amounts of rainwater that causes flooding. *
IgorC [24]
Answer =Tsunamis because they flood places and areas
3 0
3 years ago
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