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2 years ago

Imagine snow on top of a mountain. Describe at least two ways energy could be transferred as the seasons change?

Chemistry

2 answers:

Mademuasel [1]2 years ago

8 0

Answer:

at summer season the snow will melt and will produce water and using generators we can produce electric energy and in spring and winter can produce electric energy also using the wind

Andreas93 [3]2 years ago

3 0

Answer:

Explanation: summer season the snow will melt and will produce water and using generators we can produce electric energy.

and in spring and winter can produce electric energy also using the wind

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Classify the solid state of the following substances as ionic crystals, covalent crystals, molecular crystals, or metallic cryst

Mice21 [21]

Explanation:

There are four type of crystals possible in solids state , given as follows -

1. Ionic crystals -

In this type of crystals ionic bond is involved for the bonding between two atoms , which connects two oppositely charged atoms , i.e. , cation and anion together .

The ionic crystal from the given options are -

(d) KBr and (g) LiCl .

2. Covalent crystals -

The bond formed in these type of crystals are from share the electrons , i.e. making a covalent bond .

Hence ,

From the given options , the covalent crystals are -

(b) B₁₂ and (f) SiO₂ .

3. Molecular crystals -

weak intermolecular forces , like the dispersion forces , holds the atoms together , generating a molecular crystal .

Hence ,

From the given options , the molecular crystals are -

(a) CO₂ and (c) S₈

4. Metallic crystal -

The type of bond , which make up a metallic crystal is , the metal cation with the delocalized electrons .

Hence ,

From the given options , the metallic crystals are -

(e) Mg and (h) Cr

8 0

3 years ago

Isotopes of an element contain different numbers of

Simora [160]

Neutrons
Hope this helps!

4 0

2 years ago

At 1115 degrees Celcius, where iron is still a solid (melting point 1538 degrees Celcius), the unit cell for the most stable cry

svp [43]

Answer: The atomic radius of iron is 128 pm.

Explanation:

To calculate the radius of the metal having FCC crystal lattice, the relationship between edge length and radius follows:

$4r=\sqrt{2}a$

Where,

a = edge length = 362 pm

r = atomic radius of iron = ?

Plugging values in above equation, we get:

$r=\frac{\sqrt{2}\times 362}{4}\\\\a=128pm$

Hence, the atomic radius of iron is 128 pm.

7 0

3 years ago

If two gases are present in a container, the total pressure in the container is equal to

qwelly [4]

Answer: sum of the pressure of the two gases present.

Explanation:

According to Dalton's law, the total pressure of a mixture of gases is the sum of individual pressures exerted by the constituent gases.

$p_{total}=p_A+p_B$

For example if there are there are two gases hydrogen and oxygen with individual pressure of 30 and 20 atm each. Then the total pressure in the container will be:

$p_{total}=p_{H_2}+p_{O_2}$