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makvit [3.9K]
3 years ago
8

Periodic Law Directed Reading

Chemistry
2 answers:
kolbaska11 [484]3 years ago
8 0

Answer:

C

Explanation:

spayn [35]3 years ago
4 0

Answer:Developed a method for organizing elements based on their atomic number

Explanation:

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mamaluj [8]

Answer: put 2 in front of NaOH and 2 also in front of H2O

Explanation: 2NaOH + H2CO3 —> Na2CO3 + 2H2O

8 0
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Answer the following questions for this equation: 2 H2 + O2 --> 2 H2O
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Answer:

                       1 Mole O₂ / 2 Mole H₂O

Explanation:

                  The balance chemical equation for the synthesis of water is as follow,

                                             2 H₂ + O₂ → 2 H₂O

In this equation the moles are specified by the coefficients i.e.

2 moles of H₂ reacting with 1 mole of O₂

2 moles of H₂ producing 2 moles of H₂O

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Hence the molar ratio for O₂ and H₂O can be written as,

                            1 Mole O₂ : 2 Mole H₂O

or,

                           1 Mole O₂ / 2 Mole H₂O

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</span>hope it helps

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