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zaharov [31]
3 years ago
10

How does pollution affect air resources?

Chemistry
1 answer:
tatiyna3 years ago
7 0

Answer: it gets inside the air and then it infects the air's resourses

Explanation:

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When your muscle gets tired, it builds up the _______ and makes it more powerful.
Nataly [62]
The answer is “D Tissue”


Explanation:

when you workout you tear down your muscles (tissue) and after your done working out your body rebuilds tissue


hope this helps
5 0
2 years ago
Phosphorus has three electrons in its 3p sublevel and sulfur has four. Phosphorus should have the lower ionization energy but it
Nadya [2.5K]

Answer:

B

Explanation:

First of all it is important to know that a half filled orbital is particularly stable. In phosphorus all the electrons occur singly in the 3p sublevel minimizing inter electronic repulsion hence it is more difficult to remove an electron from this energetically stable arrangement. In sulphur, electrons are paired in one of the 3p orbitals thereby lowering the energy of that level due to instability caused by interelectronic repulsion between two electrons in the same orbital.

8 0
3 years ago
The value of ka for nitrous acid (hno2) at 25 ∘c is 4.5×10−4. what is the value of δg at 25 ∘c when [h+] = 5.9×10−2m , [no2-] =
LuckyWell [14K]
To get the value of ΔG we need to get first the value of ΔG°:

when ΔG° = - R*T*㏑K

when R is constant in KJ = 0.00831 KJ

T is the temperature in Kelvin = 25+273 = 298 K

and K is the equilibrium constant = 4.5 x 10^-4

so by substitution:

∴ ΔG° = - 0.00831 * 298 K * ㏑4.5 x 10^-4

        = -19 KJ

then, we can now get the value of ΔG when:

ΔG = ΔG° - RT*㏑[HNO2]/[H+][NO2]

when ΔG° = -19 KJ

and R is constant in KJ = 0.00831 

and T is the temperature in Kelvin = 298 K

and [HNO2] = 0.21 m & [H+] = 5.9 x 10^-2 & [NO2-] = 6.3 x 10^-4 m  

so, by substitution:

ΔG = -19 KJ - 0.00831 * 298K* ㏑(0.21/5.9x10^-2*6.3 x10^-4 )

       = -40

     
8 0
3 years ago
What type of charges do nonmetals develop in ionic compounds?
Mazyrski [523]

positive is the answer


8 0
3 years ago
Read the list of elements given below. Be, Mg, Ca, Sr Which of the following about the elements is true? (5 points)
slava [35]

Answer:

Pretty Sure Its A

Explanation:

4 0
2 years ago
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