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Softa [21]
3 years ago
10

According to Hund's rule, what's the expected magnetic behavior of vanadium (V)?

Chemistry
1 answer:
vodka [1.7K]3 years ago
6 0

Answer:

C. paramagnetic.

Explanation:

1s2 2s2 2p6 3s2 3p6 4s2 3d3 It is Vanadium.

It has 3 unpaired d- electrons, so it is paramagnetic.

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A liquid has a density of 4.26g/ml. It has a mass of 2.2g. What is the volume of the liquid?
serg [7]

Answer:

Volume = .5164 ml

Explanation:

These are the equations you need to learn.

Density = \frac{mass}{volume}

Volume = \frac{Mass}{Density}

Mass = Density * Volume

Apply these concepts to your problem

4.26 g/ml = \frac{2.2g}{x}

V = \frac{2.2g}{4.26g/ml}

Divide 2.2/4.26

V = 0.5164319248826291

Volume = .5164ml

5 0
3 years ago
Read 2 more answers
A student dissolves 13.8g of sodium chloride in of water in a well-insulated open cup. He then observes the temperature of the w
Firdavs [7]

Answer:

Exothermic and H=-1.55x10^6

Explanation:

Because the water is changing it is exothermic and the h is also exothermic

3 0
3 years ago
What is Alkaline and acid​
Lunna [17]

Answer:

Alkaline is a substance that is over the pH of 7. an acid is a substance that is lower than the pH of 7

When universal indicator is put into an alkaline substance it will turn blue/purple/black. If it is an acid the substance will turn red/orange/yellow

The same will happen if litmus paper is used instaed. If the paper turns blue/purple/black it means that the substance is an alkaline. If the paper turns red/orange/yellow it means that the substance is an acid

If the substance or the litmus paper turns green it means that it is neutral (It has the pH of 7)

Your welcome

please mark brainliest

8 0
3 years ago
What would be the formula for an alkane which contains 30 hydrogen atoms?<br><br> C__H30
maxonik [38]
C14H30 because of the formula for alkanes:
CnC2n+2
5 0
3 years ago
Read 2 more answers
Pyridine, C5H5N, is a polar organic solvent. How many carbon atoms are in 7.05 moles of pyridine? 4.24 x 1024 4.24 x 10, 24 2.12
leonid [27]

Answer:

2.122×10^25atoms

Explanation:

number of moles=mass/molar mass

7.05moles= mass of pyridine/79

reacting mass of pyridine=556.95

C5H5N= (12×5)+(5)+(14)=79

C5=60

to find the mass of carbon in 556.95g of pyridine we take the stoichometric ratio

60[C5] -----> 79[C5H5N]

x[C5] --------> 556.95g[C5H5N]

cross multiply

x=(60×556.95)/79

x=423g of carbon

moles=mass/molar mass

moles of carbon=423/12

moles=35.25moles of carbon

moles=number of particles/Avogadro's constant

35.25=number of particles/6.02×10^23

number of particles=2.122×10^25atoms of carbon

3 0
2 years ago
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