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Lynna [10]
3 years ago
7

This is about rocks and/or minerals

Chemistry
2 answers:
Vitek1552 [10]3 years ago
8 0
Graphite is most likely to break apart with cleavage due to the fact that the carbon atoms in graphite,from sheets, could split easily in layers. Graphite had cleavage as the weak bonds in the layers can easily break. It’s unlikely to fracture as fractures usually break in jagged pieces. Atoms in graphite are arranged in layers.
vampirchik [111]3 years ago
5 0
I need the same answer
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How many grams of CO2 evolved from a 1.205g sample that is 36% MgCO3 and 44% K2CO3 by mass?
emmasim [6.3K]

Mass of CO₂ evolved : 0.108 g

<h3>Further explanation</h3>

Given

1.205g sample, 36% MgCO3 and 44% K2CO3

Required

mass of CO2

Solution

  • mass of MgCO₃ :

0.36 x 1.205 g=0.4338 g

mass C in MgCO₃(MW MgCO₃=84 g/mol,  Ar C = 12/gmol)

= (12/84) x 0.4338

= 0.062 g

  • mass of K₂CO₃ :

0.44 x 1.205 g = 0.5302 g

Mass C in K₂CO₃(MW=138 g/mol) :

= (12/138) x 0.5302

= 0.046 g

Total mass Of CO₂ :

= 0.062 + 0.046

= 0.108 g

7 0
3 years ago
What element represented by the bohr model below?
Svet_ta [14]

Answer:

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Flourine is the 9th element in the periodic table

6 0
3 years ago
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vredina [299]

Answer:steeper

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7 0
3 years ago
Which of the following statements is true?
Zinaida [17]

Answer:

Parasites often show cospeciation because they must evolve with ther hosts.

Explanation:

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A sheet of steel 1.5 mm thick has nitrogen atmospheres on both sides at 1200°C and is permitted to achieve a steady-state diffus
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Explanation:

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