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Arada [10]
3 years ago
14

Would you define boiling point and melting point as a periodic table family trend (vertical groups), period trend (horizontal ro

ws), or neither? Explain your answer.
I am so stumped on this question please help me out. It does not help that my school did not give me a science book 
Chemistry
2 answers:
SSSSS [86.1K]3 years ago
8 0
Vertical groups I think as it increases and decreases down different groups
BartSMP [9]3 years ago
5 0
It's horizontal because, the periodic table goes horizontal
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If 3.0 liters of 0.50 m nacl (aq) is mixed with 9.0 liters of 0.2777 m nacl (aq), what is the final concentration of the resulti
Svetradugi [14.3K]
First, we shall calculate the total number of moles present in the final solution.
Number of moles in 0.50 m NaCl = molarity * volume = 0.50 * 3.0 = 1.5 moles.
Number of moles in 0.2777m NaCl = molarity * volume = 0.2777 * 9.0 = 0.24993 moles
Total number of moles = 1.5 + 0.24993 = 1.74993 moles

Second, we shall calculate the total volume of the final solution.
Total volume = 3 + 9 = 12 litres.

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3 0
3 years ago
Which of the following is a physical property of water?
Kamila [148]
Water is NOT flammable.
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3 years ago
PbCl2s) + Cl2g -<br> + PbCl40)<br> ΔΗ = ?
ludmilkaskok [199]

Answer:

ichedgepeth

Explanation:

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4 0
3 years ago
How many grams of lead (ll) chloride are produced from the reaction of 25g of sodium chloride according to the balanced reaction
Natalka [10]

Answer:

The answer to your question is:  25 g of PbCl2

Explanation:

Data

NaCl = 25 g

PbCl₂ = ?

                       Pb(NO3)2 + 2 NaCl ⇒ PbCl2 + NaNO3

MW NaCl = 58.5 g

MW PbCl2 = 277 g

                       2(58.5 g) of NaCl ------------------------  277 g of PbCl2

                       25 g  of NaCl       ------------------------     x

                       x = (25 x 277) / 117

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7 0
3 years ago
What is the electron configuration of the element in group 13 and period 3 on the periodic table? *
tankabanditka [31]

Answer:

The 3rd option is correct

Explanation:

The element in group 13 and period 3 is aluminium which has the electron configuration

1{s}^{2} 2 {s}^{2} 2 {p}^{6} 3 {s}^{2} 3 {p}^{1}

or [Ne] 3s^2 3p^1

4 0
2 years ago
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