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Pani-rosa [81]
4 years ago
15

Which of these would be most attracted to a magnet?

Chemistry
2 answers:
jonny [76]4 years ago
8 0
The one that is the most attracted to a magnet is the element with an electron configuration that has the most number of unpaired electrons. In this case, 3d10 is already full hence no unpaired electrons, as well as 3s2 and 3p6. 3d5 does not have a full octet, hence the answer is C
svet-max [94.6K]4 years ago
3 0
1s2 2s2 2p6 2s2 3p6 4s2 3d5
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The relationship between the frequency and wavelength of a wave is
Ilya [14]

Answer:

B

Explanation:

Frequency and wavelength are inversely proportional

8 0
3 years ago
A 40.0-mL sample of 0.100 M HNO2 (Ka = 4.6 x 10-4 .) is titrated with 0.200 M KOH. Calculate: a. the pH when no base is added b.
In-s [12.5K]

Answer:

a) 2.173

b) 20ml

c) 3.87

d) 4.35

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f) 12.45

Explanation:

chech the attachment for explanationns

4 0
3 years ago
In this reaction, what roll does the lead (II) nitrate play when 50.0 mL of 0.100M iron (III) chloride are mixed with 50.0 mL of
Aloiza [94]

Answer: The roll of lead (II) nitrate is that it is a limiting reactant of the reaction.

Solution : Given,

Molarity of FeCl_3 = 0.1 M

Volume of FeCl_3 = 50.0 ml = 0.05 L     (1 L = 1000 ml)

Molarity of Pb(NO_3)_2 = 0.1 M

Volume of Pb(NO_3)_2 = 50.0 ml = 0.05 L

First we have to calculate the moles of FeCl_3 and Pb(NO_3)_2.

\text{ Moles of }FeCl_3=\text{ Molarity}\times \text{ Volume in L}

\text{ Moles of }FeCl_3=(0.100M)\times (0.05L)=0.005moles

\text{ Moles of }Pb(NO_3)_2=\text{ Molarity}\times \text{ Volume in L}

\text{ Moles of }Pb(NO_3)_2=(0.100M)\times (0.05L)=0.005moles

The balanced chemical reaction is,

2FeCl_3+3Pb(NO_3)_2\rightarrow 2Fe(NO_3)_3+3PbCl_2

From the balanced chemical equation, we conclude that

3 moles of lead nitrate react with 2 moles of ferric chloride.

Thus 0.005 moles of lead nitrate react with =\frac{2}{3}\times 0.005=0.0033 moles of ferric chloride.

Moles of ferric chloride will be left unreacted = 0.005 - 0.0033 =0.0017 moles

Limiting reagent is the reagent in the reaction which limits the formation of product.

Excess reagent is the reagent in the reaction which is in excess and thus remains unreacted.

Therefore, in the given reaction, lead nitrate is the limiting reagent and ferric chloride is the excess reagent.

7 0
3 years ago
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What is produced in photosynthesis
dolphi86 [110]
Energy for the plant. It’s a glucose
6 0
4 years ago
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The pH of a certain brand of soap is 9.5. Which sentence best describes soap?
Svetradugi [14.3K]
Hi,
The answer should be ‘soap is a base because it’s pH is above 7’
5 0
3 years ago
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