All categories

4 years ago

How does sandstone change into quartzite

1 answer:

7 0

Sandstone, a sedimentary rock, turns into quartzite, a metamorphic rock, through metamorphosis. Metamorphosis is the use of extreme heat and pressure to change the crystalline structure of a rock or crystal.

You might be interested in

Why do a planets speed change in orbit

gayaneshka [121]

According to Kepler's second law of orbital motion, a plane's orbital speed changes , depending on how far it is from the sun. The closer a planet is to the sun, the stronger the sun's gravitational pull on it, and the faster the planet moves. The farther away from the sun, the weaker the sun's gravitational pull and the slower it moves in its orbit.

The orbit of a planet around the sun is not a perfect circle, but an ellipse - a flattened circle.

3 0

3 years ago

Sulfur and magnesium both have two valence electrons.<br> a. True<br> b. False

Nezavi [6.7K]

It would be false sulfur has 6

3 0

4 years ago

What volume is occupied by 18.4 g oxygen at 28.0°C and a pressure of 0.998 torr? (round to sig figs)

Alexxandr [17]

Answer:

11.0 dm³

Explanation:

From the question,

Applying

PV= nRT............... Equation 1

Where P = pressure of oxygen gas, V = volume of oxygen gas, n = number of moles of oxygen, R = molar constant, T = Temperature.

make V the subeject of the equation

V = nRT/P............. Equation 2

But,

Number of mole (n) = Mass of oxygen(m)/Molar mass of oxygen(m')

n = m/m'....................... Equation 3

Substitute equation 3 into equation 2

V = mRT/Pm'............. Equation 4

Given: T = 28°C = (28+273) = 301 K, P = 0.998 torr = (0.998×0.00131579) = 1.3132 atm, m = 18.4 g

Constant: R = 0.082 atm.dm³/K.mol, m' = 32 g/mol.

Substitute these values into equation 4

V = (301×18.4×0.082)/(32×1.3132)

V = 454.1488/42.0224

V = 10.81 dm³

V = 11.0 dm³

8 0

3 years ago

Could the structures below undergo a Fischer esterification reaction? Reaction scheme of benzoic acid and thionyl chloride to fo

Romashka-Z-Leto [24]

Answer:

The correct answer is the first option. No, the structures above cannot undergo a Fischer esterification reaction to form an ester.

Explanation:

The reaction that will take place can be found in the attached file. The reaction does not require any catalyst and it cannot undergo a Fischer esterification reaction to form an ester.

4 0

3 years ago

Chlorine (cl) has an atomic number of 17. it often forms an ion by gaining 1 electron. what would its charge be?

Aliun [14]

Answer:

= -1

Explanation:

Chlorine belongs to the halogen group in the periodic table. It has an atomic number of 17, which indicates the number of protons and electrons in a neutral atom of chlorine is 17.
Therefore; with an atomic number of 17, its electronic configuration will be 2:8:7.
Thus; to attain a stable configuration chlorine requires to gain one electron, by so doing it becomes a negatively charged ion with a charge of -1.

6 0

3 years ago

Read 2 more answers