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Dahasolnce [82]
3 years ago
14

Which factor explains why coal dust in an enclosed space is more explosive than coal dust blown outdoors into an open space ? A.

Temperature B. Surface area C. Concentration D. Volume E. Catalyst
Chemistry
1 answer:
leonid [27]3 years ago
6 0

Answer:

Option C:- Concentration

Explanation:

Coal dust explosion can cause lots of damage. To avoid

this, the amount or concentration of coal dust per unit

volume or MEC is measured with the various conditions

of coal storage such as the particle size, moisture of coal,

degree of dispersion and delayed time of ignition source

to prevent the coal dust explosion which aims to study

and design the explosion safety measures for coal dust

handing installations. The results present that moisture

content in coal has more effect on dust explosion. The

smaller size of particle, low moisture in coal and high

coal dust dispersion can increase the possibility or risk of

dust explosion.

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Different "substances" are forms of matter (having volume and taking up space) with different _______________ from each other. a
ExtremeBDS [4]

Answer:

properties

Explanation:

The properties of matter are the various ways in which matter behaves under certain circumstances.

Various substances have different volumes and shapes. These differences account for the various properties of matter.

3 0
3 years ago
The reaction that takes place when iron metal combines with aqueous hydrochloric acid.
Juli2301 [7.4K]
The reaction gives out a yellow showery sparks and produces a black solid. Iron reacts with dilute hydrocloric acid to give iron chloride and hydrogen gas.

2Fe+2Hcl3 = 2FeCl3+H2

8 0
3 years ago
Can someone please give me a clear definition of what ceramics are? It will really help! :)
natima [27]

The pots and other articles made from clay hardened by heat is called ceramics..

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8 0
3 years ago
Read 2 more answers
Can someone help with homework anyone? right now its science...
inna [77]

Answer:

Organ

Explanation:

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8 0
3 years ago
The answer to this question
Ulleksa [173]

Hey there!

Oxygen needs two bonds to have a valence orbital of s²p⁶.

In a hexanal molecule, oxygen has a double bond with one carbon atom.

A double bond is when two pairs of electrons are being shared.

So your answer is b. 2.

Hope this helps!  

7 0
3 years ago
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