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bezimeni [28]
3 years ago
14

Can you explain and read this equation 2Mg + 02 —— 2MgO

Chemistry
2 answers:
anzhelika [568]3 years ago
3 0
Magnesium + oxygen makes Magnesium Oxide.

The big numbers are for balancing the equation.
Fantom [35]3 years ago
3 0

Answer:

Here's what I get  

Explanation:

There are several ways to read your equation.

2Mg + O₂ ⟶ 2MgO

  1. Magnesium reacts with oxygen to form magnesium oxide
  2. Two atoms of magnesium react with one molecule of oxygen to form one formula unit of magnesium oxide.
  3. Two moles of magnesium react with one mole of oxygen to form one mole of magnesium oxide.
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What is a common form for synthesis reactions?
mamaluj [8]

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Explanation:

8 0
3 years ago
Determine the empirical formula of a compound containing 1.71 g of silicon and 8.63 g of chlorine.
Basile [38]

Answer:

The answer to your question is: SiCl₄

Explanation:

Data

amount of Si      1.71 g

amount of Cl     8.63 g

MW Si = 28 g

MW Cl = 35.5

Process (rule of three)

For Si                                                        For Cl

        28 g of Si ------------------ 1 mol                      35.5 g of Cl --------------- 1 mol

          1.71g of Si  ---------------   x                              8.63 g of Cl --------------  x

         x = 1.71 x 1 / 28 = 0.06 mol                          x = 8.63 x 1 / 35.5 = 0.24 mol

Now, divide both results by the lowest of them.

Si = 0.06 mol / 0.06 = 1 molecule of Si     Cl = 0.24 / 0.06 = 4 molecules of Cl

Finally

                     Si₁ Cl₄ or SiCl₄

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3 years ago
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I hope this helps
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The pka value for the carboxylic acid group in acetic acid is 4.75. write the predominant structure of acetic acid at (a ph=1, (
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Hello!

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This pH is lower than the value for the pKa, so Acetic acid wouldn't be ionized, but the equilibrium would be displaced to CH₃COOH

CH₃COOH ⇄ CH₃COO⁻ + H₃O⁺ (equilibrium displaced to the left)

The chemical structure for CH₃COOH is the first one in the attached images.

B) At pH=7

This pH is higher than the value for the pKa, so Acetic acid would be ionized, and the equilibrium would be displaced to CH₃COO⁻

CH₃COOH ⇄ CH₃COO⁻ + H₃O⁺ (equilibrium displaced to the right)

The chemical structure for CH₃COO⁻ is the second one in the attached images.

Have a nice day!

7 0
3 years ago
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