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seropon [69]
3 years ago
12

Magma can partially crystallize at depth and then rise to shallow depths where the remaining magma solidifies. The early-formed

crystals are ____________ and the texture is ____________ .
Chemistry
1 answer:
Doss [256]3 years ago
5 0
<h2>Phenocrysts and Porphyritic texture </h2>

Explanation:

  • The early formed crystals are of phenocrysts and the texture of these crystals is porphyritic texture.  
  • This crystallization occurs when early-forming plagioclase crystals which are rich in calcium start coating with plagioclase crystals which are rich in sodium.
  • On cooling, the magma is then processed in a volcanic eruption, after the eruption the liquid which is left behind will start cooling and forms a porphyritic texture.  

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True or false When heat flows to an object, it can change states.
emmasim [6.3K]

Answer: True

Explanation:

The matter exists as solid, liquid or gas. These are called the states of matter. The change of matter from one state to another can be achieved by heating or cooling.

The solid state can be converted into liquid state by providing heat to solid. The heat will make the particles move farther, resulting into liquid state.

Similarly when liquid state is provided heat, it changes to gaseous state. The heat will make the particles move much more faster.

Thus the statement that when heat flows to an object, it can change states is True.

7 0
2 years ago
At what temperature does water become a gas?
uranmaximum [27]
The answers is d. 100o c
3 0
3 years ago
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Calculate the heat change involved when 2.00 L of water is heated from 20.0/C to 99.7/C in
Pani-rosa [81]

Answer:

666,480 Joules or 669.48 kJ

Explanation:

We are given;

  • Volume of water as 2.0L or 2000 ml

but, density of water is 1 g/ml

  • Therefore, mass of water is 2000 g
  • Initial temperature as 20 °C
  • Final temperature as 99.7° C

Required to determine the heat change

We know that ;

Heat change = Mass × Temperature change × specific heat

In this case;

Specific heat of water is 4.2 J/g°C

Temperature change is 79.7 °C

Therefore;

Heat change = 2000 g × 79.7 °C × 4.2 J/g°C

                      = 669,480 Joules 0r 669.48 kJ

Thus, the heat change involved is 666,480 Joules or 669.48 kJ

5 0
3 years ago
Determine the frequency of light with a wavelength of 4.27 * 10^-7
Citrus2011 [14]

Answer:

f=7.02*10^15

Explanation:

We are supposed to find the frequency of light .

λf=c

the abow formula is the relation for frequency and wavelength.

Here c is the speed of light.

c=3*10^9m/s

Given that

λ= 4.27 * 10^-7

by substituting all this we get f as,

f=\frac{3*10^9}{4.27 * 10^-7}

f=7.02*10^15

7 0
3 years ago
If Spongebob is under water than what is the substance beneath the water that they swim in
Mariana [72]

Answer:

The seafloor

Explanation:

the bottom of the ocean, aka the sea floor.

usually made from sand

8 0
3 years ago
Read 2 more answers
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