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Artist 52 [7]
3 years ago
13

Match the following rocks with the correct type obsidian intrusive igneous granite organic sedimentary conglomerate clastic sedi

mentary evaporite extrusive igneous coal metamorphic marble
Chemistry
2 answers:
Marizza181 [45]3 years ago
8 0
Obsidian - extrusive igneous
granite - clastic sedimentary
conglomerate - intrusive igneous
evaporite -  chemical sedimentary 
coal - organic sedimentary
marble - metamorphic
juin [17]3 years ago
6 0

Answer:

Obsidian- Extrusive igneous

Granite- Intrusive igneous

Conglomerate- Clastic sedimentary

Evaporite- Chemical sedimentary

Coal- Organic sedimentary

Marble- Metamorphic

Explanation:

1) Obsidian- This rocks are volcanic glasses formed naturally because of a felsic volcanic eruption. They are generally blackish in color and are found on the earth's surface, considered as an extrusive volcanic igneous rock.

2) Granite- This rocks are formed when hot intrusive magma undergoes crystallization under the earth's surface. The minerals are coarser due to the slow rate of cooling.

3) Conglomerate- It is a clastic sedimentary rock which is comprised of comparatively larger and circular rock fragments and these fragments are attached to one another with quartz or calcitic cements, that makes the rock hard.

4) Evaporite- This are formed when the water evaporates precipitating a  certain type of mineral deposit such as the natural salt. They are considered as the chemical sedimentary rock.

5) Coal- It is an organic sedimentary rock that is formed from the ancient fossilized plants that were buried millions of years ago. They are very dark in color and are widely used to produce electricity. They are comprised of carbon compound.

6) Marble- It is a metamorphic rock, formed when calcite or dolomite rock undergoes changes due to the increasing temperature and pressure conditions.

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Explanation:

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3 years ago
an unknown amount of mercury (ii) oxide was decomposed in the lab. mercury metal was formed and 4.50 l of oxygen gas was release
Assoli18 [71]

The initial weight of mercury oxide in the sample was 59.1 g HgO.

<h3>Steps</h3>

chemical reaction

2HgO ⟶ 2Hg + O₂

the moles of O₂

pV = nRT

n = (pV)/(RT)

Data:

p = 0.970 atm

V = 4.50 L

R = 0.082 06 L·atm·K⁻¹mol⁻¹

T = 390.0 K

Calculation:

n = (0.970 × 4.500)/(0.082 06 × 390.0)

n = 0.1364 mol O₂

the moles of HgO

The molar ratio is 1 mol O₂/2 mol HgO.

Moles of HgO = 0.1364 mol O₂ × (2 mol Hg/1 mol O₂)

Moles of HgO = 0.2728 mol HgO

the mass of HgO

Mass of HgO = 0.2728 mol HgO × (216.59 g HgO/1 mol HgO)

Mass of HgO = 59.1 g HgO

<h3>What is the name of HgO?</h3>

For the creation of various organic mercury compounds and specific inorganic mercury salts, mercury(II) oxide, or HgO, serves as a source of elemental mercury.

This red or yellow crystalline substance is also utilised in mercury batteries and zinc-mercuric oxide electric cells as an electrode (combined with graphite).

<h3>What is the purpose of mercury oxide?</h3>

Mercuric oxide is a colourless, crystalline powder that ranges from yellow to orange-yellow.

It serves as a seed protectant, a pigment, a preservative, and an ingredient in alkaline batteries and cosmetics.

<h3>Is there a combination of mercury oxide?</h3>
  • The powder form of mercury oxide is dark black or dark brown.
  • An intimate blend of metallic mercury and mercuric oxide rather than a genuine compound.

learn more about mercury oxide here

brainly.com/question/3235037

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4 0
1 year ago
Calculate the volume of the object immersed in the water in the water in the adjoining figur. ​
kirza4 [7]

Answer:

100 cm³

Explanation:

Hi there!

Subtract:

400 cm³ - 300 cm³

= 100 cm³

Therefore, the volume of the object is 100 cm³.

I hope this helps!

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2 years ago
Naproxen (sold under the name Aleve) is a nonsteroidal anti-inflammatory drug (NSAID), and is used to treat different types of p
alexandr1967 [171]
It is true it is used for inflammation and pain in muscle and joints it is also used for muscle and bone disorders
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Calculate a pendulums frequency (in Hz) if the pendulum completes 19 cyclesin 0.5 s.
MAVERICK [17]
1Hz = 1 cycle per second

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