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san4es73 [151]
3 years ago
8

Please help I need help fast please

Chemistry
1 answer:
shtirl [24]3 years ago
8 0

Answer:

1 is h

2 is a

3 is

4 is e

5 is d

6 is

7 is g

8 is

9 is b

10 is f

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Dvinal [7]
A. M x L = moles. 
<span>b. CH3COOH + NaOH ==> CH3COONa + H2O </span>
<span>I...6 mmols....0.......7.5 mmoles </span>
<span>C... 0........0.51 mmols..0 </span>
<span>E...6-0.511 ....0.......7.5+0.511 </span>

<span>I stands for initial </span>
<span>C stands for change. </span>
<span>E stands for equilibrium. </span>
<span>Just divide mmoles by 1000 to convert to moles. I work in mmoles because I get tired of writing those zeros. </span>

<span>c. done as in b.</span>
8 0
3 years ago
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4 0
3 years ago
Choose the element described by the following electron configuration.
nadezda [96]

Answer:

The answer to your question is Argon

Explanation:

Electron configuration given               1s² 2s² 2p⁶ 3s² 3p⁶

To find the element whose electron configuration is given, we can do it by two methods.

Number 1. Sum all the exponents the result will give you the atomic number of the element.

                      2 + 2 + 6 + 2 + 6 = 18

The element with an atomic number of 18 is Argon.

Number 2. Look at the last terms of the electronic configuration

                      3s² 3p⁶

Number three indicates that this element is in the third period in the periodic table.

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Number 8 indicates that this element is the number 8 of that period without considering the transition elements.

The element with these characteristics is Argon.

4 0
3 years ago
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C6 (hexane) is a liquid at room temperature not a gas.

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6 0
3 years ago
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Natali [406]
The balanced chemical equation for the above reaction is as follows;
2Ca + O₂ --> 2CaO
stoichiometry of Ca to O₂ is 2:1
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however only 7.43 mol of Ca is present. Therefore Ca is the limiting reactant.
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therefore there's excess O₂₂ remaining after the reaction
Since Ca is the limiting reactant, it is fully used up in the reaction and there is no Ca remaining after the reaction is completed.


4 0
3 years ago
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