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3 years ago

Which rock is only formed by regional metamorphism?

Chemistry

2 answers:

dalvyx [7]3 years ago

6 0

It is either Slate, Phyllite, Schist, and or Gneiss

Archy [21]3 years ago

6 0

Metamorphism, which takes place over the wide regions of the crust is known as regional metamorphism. The majority of the regionally metamorphosed rocks takes place in the regions, which have gone through deformation at the time of an orogenic event.

Gneiss is only produced by regional metamorphism. Gneiss can be produced by the regional metamorphism of distinct kinds of rocks like shale or granite. It refers to a high-grade metamorphic rock, which signifies that it is produced at high pressures and temperatures.

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nikklg [1K]

Answer:

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Explanation:

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2 years ago

Is copper penny react reaction with Nitric acid a Chemical or physical Change?

riadik2000 [5.3K]

Answer:

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3 years ago

How many molecules are in a 2.1 mol of H2O? *

gayaneshka [121]

Answer:

The mole is the SI unit for amount of a substance.

Explanation:

Just like the dozen and the gross, it is a name that stands for a number. There are therefore 6.02 × 10 23 water molecules in a mole of water molecules.

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3 years ago

A balloon is filled with 0.250 mole of air at 35°C. If the volume of the balloon is 6.23 liters, what is the absolute pressure o

ruslelena [56]

Answer:

102.807 kPa

Explanation:

There are some assumptions to be made in the answer. The air inside the balloon acts as an ideal gas at a given temperature conditions.

Using the combined ideal gas equation.

$PV = nRT\\$

P= absolute pressure of air inside the balloon.

V= volume of air inside the balloon (6.23 L= 6.23 * 10⁻³ m³)

n= moles of gas(air). (0.250 mol)

R= Universal gas constant ( 8.314 J / mol·K)

T= Temperature in Kelvin

T= 35 + 273.15 = 308.15 K

So, $P = \frac{nRT}{V}$

$P = \frac{0.250 * 8.314 * 308.15}{6.23 * 10^{-3} }$

P= 102.807 * 10³ Pa

P= 102.807 kPa

3 0

3 years ago

Read 2 more answers

A 13.00 g sample of a compound contains 4.15 g potassium (k), 3.76 g chlorine (cl), and oxygen (o). calculate the empirical form

MrRissso [65]

To solve this problem, let us all convert the mass of each element into number of moles using the formula:

moles = mass / molar mass

Where,

molar mass K = 39.10 g / mol

molar mass Cl = 35.45 g / mol

molar mass O = 16 g / mol

and mass O = 13 g – 4.15 g – 3.76 g = 5.09 g

moles K = 4.15 g / (39.10 g / mol) = 0.106 mol

moles Cl = 3.76 g / (35.45 g / mol) = 0.106 mol

moles O = 5.09 g / (16 g / mol) = 0.318 mol

The ratio becomes:

0.106 K: 0.106 Cl: 0.318 O

We divide all numbers with the smallest number, in this case 0.106. This becomes:

K: Cl: 3O

Therefore the empirical formula is:

$KClO_{3}$

7 0

3 years ago