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zavuch27 [327]
3 years ago
11

What is one way that electric charges are different from magnetic poles?

Chemistry
1 answer:
sashaice [31]3 years ago
5 0
The answer is A. As the first statement is a true statement. Hope this help you
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What is the connection between chemistry and synthetic materials?
svetlana [45]

Answer:

Straight connection

Explanation:

All synthetic items are made in a chemistry lab.

Natural - Organic

Chemical/Synthetic - Inorganic

6 0
3 years ago
Problem: Janna, a student of a chemistry class, told her friend that she learnt in class that bottled water is not pure. Kim, he
Ghella [55]

Answer:

The bottle is labeled pure so it probably is pure.

Explanation:

4 0
2 years ago
What is the maximum mass of s8 that can be produced by combining 89.0 g of each reactant?
lidiya [134]

Answer : We can produce 125.7 g of S_{8}.


Explanation : The reaction will be

8SO_{2} + 16H_{2}S -----> 3S_{8} + 16H_{2}O


The molecular mass of SO_{2} is 64.1 g/mol

and molecular mass of H_{2}S is 34.1 g/mol


For every mole of SO_{2} we would need twice of H_{2}S moles, so for every 3 moles of S_{8} we need 16 moles of H_{2}S


Now, we can calculate number of moles S_{8}

2.61 X (3/16) = 0.49 moles


Here, the molecular mass of S_{8} is 256.8 g


multiplying it with the number of 0.49 moles we get, 256.8 X 0.49 = 125.7 g of S_{8}.


Hence, 125.7 g of S_{8} will be produced.

8 0
2 years ago
Calculate the wavelength, in nanometers, of the light emitted by a hydrogen atom when its electron fallsfrom the n = 7 to the n
Helga [31]

Answer:

λ=2167.6 nm

The wavelength of light emitted is 2167.6 nm.

Explanation:

We recall that Eₙ=\frac{-2.18*10^{-18} J}{n^{2} }

since there was transition from n7 to n=4 we will first calculate the change in the energy i.e ΔE

ΔE=E₄-E₇

ΔE=-2.18*10^{-18} J(\frac{1}{4^{2} } -\frac{1}{7^{2} } )

ΔE=-9.1760*10^-20 J

Now:

|ΔE|=Energy of photon=h*v=h*c/λ

λ=h*c/|ΔE|

λ=\frac{6.63*10^{-34}J.s*3.00*10^{8}m/s  }{9.1760*10^{-20} J }

λ=2.1676*10^-6 m

λ=2167.6*10^-9 m

λ=2167.6 nm

The wavelength of light emitted is 2167.6 nm.

5 0
3 years ago
Is it possible for the overall charge of an ionic compound to be -1.<br> true<br> false
AnnZ [28]

Answer:

The correct answer is False

8 0
2 years ago
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