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a_sh-v [17]
3 years ago
9

For which elements are outer electrons and valence electrons the same?

Chemistry
1 answer:
spin [16.1K]3 years ago
4 0

Answer:

The number of electrons in the outermost shell of a particular atom determines its reactivity, or tendency to form chemical bonds with other atoms. This outermost shell is known as the valence shell, and the electrons found in it are called valence electrons.

Explanation:

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Water supplies are often treated with chlorine as one of the processing steps in treating wastewater. Estimate the liquid diffus
jekas [21]

Answer:

⇒D_AB= 1.21×10^(-9)

Explanation:

Wike chang  equation is given as:

D_{AB}= \frac{117.3\times10^{-18}\times\(\phi\times M_B)^{0.5}\times T}{\mu\times\nu^{0.6}}

Where

D_AB= diffusivity of chlorine in water

Φ= 2.26 for water as solvent

ν= 0.0484 for chlorine as solute

M_B = Molecular weight of water

τ= temperature=289 K

μ= viscosity = 1.1×10^{-3}

Now putting these values in the above equation we get

D_{AB}= \frac{117.3\times10^{-18}\times\(\2.26\times18)^{0.5}\times289}{\1.1\times10^{-3}\times\0.0484^{0.6}}

⇒D_AB= 1.21×10^(-9)

7 0
3 years ago
Read 2 more answers
You use a balance to find the mass of a folded newspaper. Then you run it through a shredder. Predict its mass after being shred
sashaice [31]
Bello,

I think the answer is A

Hope this helps

~Girlygir101~
7 0
4 years ago
A hot metal is placed in 100.0 g sample of water and it causes the temperature of the water to increase from 25 C to 27 C. How m
Arisa [49]

Answer: 836.8\ J

Explanation:

Given

Mass of water in the sample is m=100\ g

Temperature changes from 25^{\circ}C to 27^{\circ}C

Change in temperature is \Delta T=27-25=2^{\circ}C\ \text{or}\ 2\ K

We know, specific heat of water is c=4.184\ J/g-K

Heat absorbed is given by

\Rightarrow Q=mc\Delta T\\\Rightarrow Q=100\times 4.184\times 2\\\Rightarrow Q=836.8\ J

Thus, water absorbs 836.8\ J of heat from hot plate.

5 0
3 years ago
Methane and ethane are both made up of carbon and hydrogen. In methane, there are 12.0 g of carbon for every 4.00 g of hydrogen,
Sati [7]

Answer:

The answer is: Law of multiple proportions        

Explanation:

The law of multiple proportions is a law of chemical combination given by Dalton in 1803.

According to this law, if more than one chemical compound is formed by combining two elements, then the mass of an element that combines with the fixed mass of other element is represented in the form of small whole number ratio.

<u>Therefore, is an illustration of the law of the law of multiple proportions.</u>

8 0
3 years ago
How does the understanding of the structure of the atom help you see both unity and diversity in forms of matter?
gtnhenbr [62]
<span>How does understanding the structure of the atom help you see both unity and diversity in forms of matter?</span><span>


Understanding the structure of the atom helps to understand unity in matter because all matter is made up of those very similar atoms. Understanding the structure of the atom helps to understand diversity in matter because matter can be different (solid, liquid, gas, hard, soft, etc) and knowing the structure of the atom can explain these differences.

Hope This Helps! :3</span>
5 0
4 years ago
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