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balu736 [363]
4 years ago
15

Choose all the answers that apply.

Chemistry
2 answers:
kicyunya [14]4 years ago
6 0
Metamorphic rock. I had this question last year. I hope I helped!
goldfiish [28.3K]4 years ago
6 0

Answer:

Option (2) and (3)

Explanation:

Sedimentary rocks are the rocks formed due to the compaction and lithification of sediments. According to the rock cycle,  these <u>sedimentary rocks can change into both metamorphic as well as igneous rocks</u>.

Sedimentary rocks can turn into metamorphic rock if the rock is subjected to high-pressure and temperature conditions. For example, shale (sedimentary rock) changes into slate (metamorphic rock) due to the process of metamorphism.

The sedimentary rocks can also change into igneous rocks. When the sedimentary rock such as sandstone is subjected to extremely high pressure and temperature condition, then it starts to melt forming magma, and this magma when crystallizes (cools) it forms igneous rock. For example, granite.

Thus, the correct options are (2) and (3).

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The compound chloral hydrate, known in detective stories as knockout drops, is composed of 14.52% C, 1.83% H, 64.30% Cl, and 19.
maria [59]

Answer:

C₂H₃Cl₃O₂

Explanation:

Given parameters:

Percentage composition:

14.52% C

1.83% H

64.30% Cl

19.35% O

Molar mass = 165.4 g/mo

Unknown:

Empirical formula = ?

Solution:

The empirical formula of a compound is the simplest formula of a compound. To solve this problem, let us follow the process below:

                                 C                     H                  Cl                  O

%composition        14.52                1.83              64.3              19.35

Molar mass               12                     1                   17                  16      

number of

moles                  14.52/12               1.83/1           64.3/3.5         19.35/16    

                               1.21                     1.83               1.81                1.21

Divide by

the smallest       1.21/1.21              1.83/1.21           1.81/1.21          1.21/1.21

                                1                        1.51                    1.51                 1

multiply

by 2                         2                          3                       3                   2

 Empirical formula   C₂H₃Cl₃O₂

5 0
4 years ago
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