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kari74 [83]
3 years ago
15

The following neutral atoms each have 8 places for electrons in their outermost shells.

Chemistry
2 answers:
Lunna [17]3 years ago
7 0
C. ne with 8 valenc3 electrons
Sav [38]3 years ago
4 0

Answer:

a. Li with 1 valence electron

Explanation:

For this it is necessary to see the electronegativity of this atoms. The electronegativity is the force or tendency that has an atom to attract electrons, so the atom who has the lower value of electronegativity is the one that will tend to lose rather than gain electrons.

The electronegativity of these atoms is:

Li – 0.98

O – 3.44

F – 3.98

Ne is a noble gas so has no tendency to gain nor lose electrons

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shtirl [24]
Bro honestly I don’t understand either
8 0
3 years ago
The molarity of an aqueous sodium phosphate solution is 0.650 M. What is the molality of sodium ions present in this solution? T
netineya [11]

Answer:

molality of sodium ions is 1.473 m

Explanation:

Molarity is moles of solute per litre of solution

Molality is moles of solute per kg of solvent.

The volume of solution = 1 L

The mass of solution = volume X density = 1000mL X 1.43 = 1430 grams

The mass of solute = moles X molar mass of sodium phosphate = 0.65X164

mass of solute = 106.6 grams

the mass of solvent = 1430 - 106.6 = 1323.4 grams = 1.3234 Kg

the molality = \frac{moles of solute}{mass of solvent in kg}=\frac{0.65}{1.323}= 0.491m

Thus molality of sodium phosphate is 0.491 m

Each sodium phosphate of molecule will give three sodium ions.

Thus molality of sodium ions = 3 X 0.491 = 1.473 m

7 0
3 years ago
Gold is used for jewelry because it is malleable. This means it can be easily molded into different shapes. What is this an exam
anastassius [24]

Malleablity is a physical property so hence

D. Physical property is the answer

6 0
2 years ago
Predict the missing product in the acid-base reaction.
Arlecino [84]

Answer:

NaCl is the correct answer

3 0
2 years ago
What volume of sample, in mL, would be needed to make 2 mL of a 5-fold dilution? (3 significant figures needed)
natulia [17]

Answer:

0.400 mL

Explanation:

Hello, the dilution factor (in folds) is given by:

folds=\frac{total_{volume}}{sample_{volume}}

Thus, the sample volume with three significant figures is given by:

sample_{volume}=\frac{2mL}{5"folds"}=0.400 mL

Best regards.

5 0
3 years ago
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