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alexgriva [62]
2 years ago
6

How can chemistry help you make wiser decisions and be a better consumer?

Chemistry
1 answer:
Cloud [144]2 years ago
4 0
<span>While we take for granted that the first step towards feeling improved is getting a diagnosis and prescription. If there are choices that could make to reduce the strength of our diet is the opening of brain chemistry. It is our body be able to only make.</span>
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What is the oxidation state of selenium in SeO3?​
ra1l [238]

Answer: The oxidation state of selenium in SeO3 is +6

Explanation:

SeO3 is the chemical formula for selenium trioxide.

- The oxidation state of SeO3 = 0 (since it is stable and with no charge)

- the oxidation number of oxygen (O) IN SeO3 is -2

- the oxidation state of selenium in SeO3 = Z (let unknown value be Z)

Hence, SeO3 = 0

Z + (-2 x 3) = 0

Z + (-6) = 0

Z - 6 = 0

Z = 0 + 6

Z = +6

Thus, the oxidation state of selenium in SeO3 is +6

8 0
2 years ago
The Kp for the reaction below is 1.49 × 108 at 100.0°C:
zhenek [66]
In an equilibrium mixture of the three gases, PCO = PCl2 = 2.22 × 10-4 atm. The partial pressure of the product, phosgene (COCl2), is kp=(COCl2)/(CO)(Cl2) which is 1.48*10^=x/(2.24*10-4)^2. So, the correct answer is <span>A) 7.34.</span>
8 0
2 years ago
Read 2 more answers
Which one of the following statements is correct?
adell [148]

Answer:

Tissues form organs, and organs form systems. Hope this helped!

Explanation:

7 0
2 years ago
Click the "draw structure" button to launch the drawing utility. Propane (CH3CH2CH3) has both 1° and 2° hydrogens. Draw the carb
OlgaM077 [116]

Answer:

a) find attached image 1

b) find attached image 2

Explanation :

The more stable radical is formed by a reaction with smaller bond dissociation energy.

since the bond dissociation for cleavage of the bond to form primary free radical is higher, more energy must be added to form it. This makes primary free radical higher in energy and therefore less stable than secondary free radical.

6 0
2 years ago
Calculate the change in entropy that occurs in the system when 2.70 mole of diethyl ether (C4H6O) condenses from a gas to a liqu
AlladinOne [14]

Answer:233 Joules/K

Explanation:

∆H= 26.5KJmol-1

Kelvin temperature = 34.6 + 273 = 307.6 K

No of moles= 2.7 moles

2.70 mole x 26.5 kJ/mole = 71.55kilojoules

∆S=71.55 kilojoules / 307.6 K = 0.233 kilojoules/ K

Convert to JK-1

0.233 kilojoules/ K x 1000 Joules/kilojoule = 233 Joules/K

5 0
2 years ago
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