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Ira Lisetskai [31]
3 years ago
10

The study of Earth's solid material and structures, and the

Chemistry
2 answers:
ruslelena [56]3 years ago
4 0
The answer is C Geology.
melisa1 [442]3 years ago
3 0
C. Geology because geology is the study of earth
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A sample of 0.800 mol of nitrogen has a pressure of 0.600 atm and a
schepotkina [342]

Answer:

274K

Explanation:

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3 years ago
A composition of reflections over parallel lines is the same as a __________.
8090 [49]

Answer : Option A) Translation


Explanation : A composition of reflections over parallel lines is the same as a <u>Translation.</u>


To identify if the composition of reflections over parallel lines are same as translation or not?


We can check using a picture of some shape in the plane. Place the picture on the right side of two vertical parallel. Now, we can see the reflected the shape over the nearest parallel line, then check the reflection over the other parallel line. We see that the shape winds up in the same orientation, like it was just shifted over to the right. Hence, it is translation.

6 0
3 years ago
Read 2 more answers
For many years after they were discovered, it was believed that the noble gases could not form compounds. Now we know that belie
Gala2k [10]

Answer:We are already given with the mass of the Xe and it is 5.08 g. We can calculate for the mass of the fluorine in the compound by subtracting the mass of xenon from the mass of the compound.

 mass of Xenon (Xe) = 5.08 g

 mass of Fluorine (F) = 9.49 g - 5.08 g = 4.41 g

Determine the number of moles of each of the element in the compound. 

   moles of Xenon (Xe) = (5.08 g)(1 mol Xe / 131.29 g of Xe) = 0.0387 mols of Xe

  moles of Fluorine (F) = (4.41 g)(1 mol F/ 19 g of F) = 0.232 mols of F

The empirical formula is therefore,

     Xe(0.0387)F(0.232)

Dividing the numerical coefficient by the lesser number.

    XeF₆

Explanation:

6 0
3 years ago
What are the Respiration effects on the pH?
WITCHER [35]
Our blood have a pH around the 7.0, when we hold the breath our cells still breathing, and the release CO_2, this compound react with water (hydrolysis).

H_2O+CO_2\leftrightharpoons H_2CO_3

This compound formed by this reaction is acid, carbonic acid.

Them the pH will get lower them normal, and our buld send an action to our body, and this reaction will be the <span>breathing.</span>
3 0
3 years ago
Write a net ionic equation for the reaction that occurs when excess hydroiodic acid and chromium(II) carbonate (s) are combined.
LUCKY_DIMON [66]

Answer:

Net ionic equation: 2I⁻(aq) + Cr²⁺(aq) → CrI₂(s)

<h3>Explanation:</h3>
  • A chemical equation shows chemical symbols of compounds known as reactants and compounds known as products in a chemical reaction.
  • The chemical equation between hydroiodic acid and chromium (II) carbonate is given by;

2HI(aq) + CrCO₃(aq) → H₂CO₃(aq) + CrI₂(s)

  • The Ionic equation is an equation that shows all the ions involved in a chemical reaction.
  • In this case, the ionic equation is;

2H⁺ I⁻(aq)+ Cr²⁺ CO₃²⁻(aq) → 2H⁺ CO₃²⁻(aq) + CrI₂(s)

  • The net ionic equation is an equation showing only the ions that take part in the reactions. The ions that do not take part in the chemical reaction known as spectator ions are not shown when writing net ionic equations.
  • Spectator ions are those ions that do not change state after the chemical reaction has taken place. In this case, hydrogen ions and carbonate ions are spectator ions.
  • The net ionic equation is

2I⁻(aq) + Cr²⁺(aq) → CrI₂(s)

6 0
3 years ago
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