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Tatiana [17]
3 years ago
11

Please help me fast ​

Chemistry
1 answer:
Mkey [24]3 years ago
7 0

Answer:

1..) The property by the virtue of which the metals can be beaten into sheets.

<u>Malleability</u><u>.</u>

<u>2</u><u>.</u>

<u>I</u><u>.</u><u>Reaction</u><u> </u><u>of</u><u> </u><u>iron</u><u> </u><u>with</u><u> </u><u>copper</u><u> </u><u>sulphate</u><u> </u><u>solution</u>

<u>ii</u><u>.</u>

<em>Iron metal displaces copper from its compound copper sulphate and forms iron sulphate along with copper metal. This reaction is a displacement reaction.</em>

<em>Reaction</em><em>:</em>

<u>Fe(Iron)</u>+CuSO4<u>(Copper Sulphate)</u><u>-</u><u>-</u><u>-</u><u>-</u><u>-</u><u>-</u><u>-</u><u>FeSO4(Ferrous </u><u>Sulphate</u><u>)</u><u>+</u><u>Cu(Copper)</u>

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Answer:

12.29 M

Explanation:

  • The reaction that takes place is:

H₂SO₄ + 2NaOH → 2Na⁺ + SO₄⁻² + 2H₂O

  • Now let's calculate the <u>moles of H₂SO₄ that were titrated</u>:

0.1284 M * 0.1915L*\frac{1molAcid}{2molNaOH} = 0.01229 mol H₂SO₄.

  • Thus, the <u>concentration of the diluted solution is</u>:

0.01229 mol H₂SO₄ / 0.010 L = 1.229 M

  • Finally, the <u>concentration of the original acid solution is:</u>

1.229 M*\frac{250mL}{25mL} = 12.29 M

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3 years ago
Which statement is correct?
sergiy2304 [10]

Answer:

a) is correct.......,.....

5 0
2 years ago
HELP PLEASE THE OTHER 'ANSWER' ISNT EVEN AN ANSWER!
hodyreva [135]

Answer:

most likely that (2) the replicated experiment was performed incorrectly.

Why, u ask? u dare question me:

1- The initial experiment invalidness cannot be proven.

2- <em><u>t</u></em><em><u>h</u></em><em><u>e</u></em><em><u> </u></em><em><u>s</u></em><em><u>e</u></em><em><u>c</u></em><em><u>o</u></em><em><u>n</u></em><em><u>d</u></em><em><u> </u></em><em><u>a</u></em><em><u>n</u></em><em><u>s</u></em><em><u>w</u></em><em><u>e</u></em><em><u>r</u></em><em><u> </u></em><em><u>i</u></em><em><u>s</u></em><em><u> </u></em><em><u>c</u></em><em><u>o</u></em><em><u>r</u></em><em><u>r</u></em><em><u>e</u></em><em><u>c</u></em><em><u>t</u></em>

3- Different labaratories does not effect the outcome, as long as the parameter and environment of the replicated experiment is the same as when the initial experiment was conducted.

4- Already knowing the data and errors would increase the precision of the replicated experiment.

5- Change in variables should still be in the objective (or purpose) of the experiment, thus, major difference in the outcome should not happen.

happy learning!

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1.As per the Aufbau principle, which of the following orbitals have the lowest energy?
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The correct answer attached in file, Thank you for joining brainly community.

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2 years ago
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