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QveST [7]
2 years ago
9

Quartzite is a coarse-grained rock derived from sandstone.

Chemistry
2 answers:
TiliK225 [7]2 years ago
7 0

Answer:

granoblastic metamorphic rock

Explanation:

sashaice [31]2 years ago
6 0
Its a metamorphic rock
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B. A chemical change 
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3 years ago
In general, what is the effect of increased temperature on the solubility of a gas?
Alecsey [184]
The physical explanation is that increasing temperature increases the kinetic energy of the gas molecules. Hence, their random motion breaks more intermolecular bonds and the gas is less dissolved in the solvent. In contrast, solid solutes in water have increased solubility with increased temperatures.
5 0
2 years ago
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What are the two variables that affect the electric force between two objects?
givi [52]

Explanation:

The electrical force between two objects is given by the formula as follows :

F=\dfrac{kq_1q_2}{d^2}

k is electrostatic constant

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So, the two force between two charged objects depends on the product of charges and distance between charges.

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2 years ago
You need to produce a buffer solution that has a pH of 5.31. You already have a solution that contains 10. mmol (millimoles) of
Karolina [17]

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37 mmol of acetate need to add to this solution.

Explanation:

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Here pH is 5.31, pK_{a} (acetic acid) is 4.74 and number of mmol of acetic acid is 10 mmol.

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5.31=4.74+log[\frac{mmol of CH_{3}COO^{-}}{10}]

or, mmol of CH_{3}COO^{-} = 37

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3 0
2 years ago
A substance has a volume of 10.0 cm3 and a mass of 89 grams. What is its density?
Irina18 [472]
Remembering that
d = m ÷ v

d = ?
m = 89 g
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Therefore:

d = 89 ÷ 10

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5 0
3 years ago
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