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sergejj [24]
3 years ago
7

What Is a combination of substances that are combined physically but not chemically

Chemistry
2 answers:
adoni [48]3 years ago
7 0
It is a heterogenous mixture
castortr0y [4]3 years ago
7 0

It's called an heterogeneous mixture :)
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Although each famous crater looks different, they have the same basic circular shape. Visit the Rio Cuarto craters in Argentina
Bumek [7]

Answer:

The controversy behind this craters is that thanks to the angle of the object's impact they could be habitable. Also, they could study them more.

Explanation:

The reason behind this answer is that majority of craters have an angle of impact of aorund45º. While the craters in the province of Cordoba, Argentina have an angle of impact of 15º. MAking them really plain, so they could be habitable for several species. Also, the materials found in the place suggest nothing more than quartz, so they represent no danger to the inhabitants, humans, or not. But more importantly that they have only received one major research study. Instead of a big variety, and they could be studied with more detail.

6 0
3 years ago
HELP! What property is not used to separate a mixture ?
andre [41]
I believe it’s conductivity
7 0
3 years ago
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Three products of destructive distillation of coal <br>please answer quickly ​
muminat

Answer:

the three products of destructive distillation of coal are:-

1. coal gas

2. coke

3. ammonia liquor

7 0
2 years ago
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Which transformation represents light energy transforming into chemical energy?
ZanzabumX [31]
I think the best answer is C. Since the light energy would be the sun and chemical energy being the glucose that feeds the plant.
4 0
3 years ago
Part 1. A chemist reacted 12.0 liters of F2 gas with NaCl in the laboratory to form Cl2 gas and NaF. Use the ideal gas law equat
galben [10]

The mass of NaCl needed for the reaction is 91.61 g

We'll begin by calculating the number of mole of F₂ that reacted.

  • Volume (V) = 12 L
  • Temperature (T) = 280 K
  • Pressure (P) = 1.5 atm
  • Gas constant (R) = 0.0821 atm.L/Kmol
  • Number of mole (n) =?

PV = nRT

1.5 × 12 = n × 0.0821 × 280

18 = n × 22.988

Divide both side by 22.988

n = 18 / 22.988

n = 0.783 mole

Next, we shall determine the mole of NaCl needed for the reaction.

F₂ + 2NaCl —> Cl₂ + 2NaF

From the balanced equation above,

1 mole of F₂ reacted with 2 moles of NaCl.

Therefore,

0.783 mole F₂ will react with = 0.783 × 2 = 1.566 moles of NaCl.

Finally, we shall determine the mass of 1.566 moles of NaCl.

  • Mole = 1.566 moles
  • Molar mass of NaCl = 23 + 35.5 = 58.5 g/mol
  • Mass of NaCl =?

Mass = mole × molar mass

Mass of NaCl = 1.566 × 58.5

Mass of NaCl = 91.61 g

Therefore, the mass of NaCl needed for the reaction is 91.61 g

Learn more about stiochoimetry: brainly.com/question/25830314

6 0
2 years ago
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