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lara31 [8.8K]
4 years ago
5

Alchemy contributed to the development of chemistry. True or False?

Chemistry
1 answer:
lubasha [3.4K]4 years ago
6 0
Yes that is true I think
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Write the net ionic equation (including phases) that corresponds to fe(clo4)2(aq)+na2co3(aq)
olganol [36]
<h2>The net ionic equation that correspond to Fe(ClO4)2 +Na2CO3  is</h2>

<u>Fe ^2+(aq)  +CO3^2-(aq) →  FeCO3 (s)</u>


<h3>Explanation</h3><h3 /><h3>write the  balance chemical equation</h3>

  Fe(ClO4)2 (aq) + Na2CO3(aq)→ FeCO3 (s)  + 2 NaClO4

<h3>write the ionic equation</h3>

 Fe^2+(aq)  + 2ClO4 ^-(aq)  + 2Na^+(aq) +CO3^2- (aq) → FeCO3 (s)   + 2Na^+ + 2ClO4^-

<h3>cancel the  spectator ions   in both side</h3>
  • that is ( 2ClO4^-  and 2Na+)

the ionic equation  is therefore

<u>Fe^2+(aq)   + CO3^2-  →FeCo3(s)</u>

8 0
3 years ago
identify the element in period 3 that requires the least amount of energy to remove the most loosely held electrons from a mole
OLga [1]

Answer:

The element is Na

Explanation:

Ionization energy is the energy needed to release the last electron from an atom in its ground state to the gaseous state.  It is a periodic property that increases as we go through the periods of the periodic table, but decreases if we move in groups.  Sodium has thr ionic radius (another periodic property) that is too large, making it easier to release the electron away, since it is too far from the nucleus.

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3 years ago
What are names and different rocks?
zubka84 [21]
Igneous rocks metamorphic rocks and sedimentary rocks
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Which of the following is an element?
Kryger [21]

Oxygen is a chemical element with symbol O and atomic number 8. Classified as a nonmetal, Oxygen is a gas at room temperature.

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A few change and healthy diet can make us illiminate cholesterol like

Reduce saturated fats. Saturated fats, found primarily in red meat and full-fat dairy products, raise your total cholesterol. ...

Eliminate trans fats. ...

Eat foods rich in omega-3 fatty acids. ...

Increase soluble fiber. ...

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