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seropon [69]
3 years ago
13

Is barium peroxide Ba2O2 or BaO2?

Chemistry
2 answers:
vredina [299]3 years ago
6 0

Answer:options?

Explanation:

astraxan [27]3 years ago
6 0
Barium peroxide is BaO2
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Which step ONLY occurs in the formation of coal?
quester [9]

"Decaying swamps are covered with seawater" step ONLY occurs in the formation of coal.

<u>Option:</u> B

<u>Explanation:</u>

Coal production continues in regions of swampy wetlands because groundwater is near to or just above the topsoil. Because of this, organic matter is created quickly by the flora present-faster even than it can be broken down. Layers of organic matter are deposited in these areas, and then buried.

Based on the plants and circumstances present, the mechanism that produces coal varies somewhat in various areas but the ultimate method is similar. Coal production has two primary phases: peatification, and coalification. It is a solid black, readily combustible fossil fuel containing a large quantity of carbon-based material-about 50 percent of its mass.

5 0
3 years ago
Which equation shows how to calculate how many grams (g) of KCI would be
Semenov [28]

Answer:

C or D

Explanation:

Hope it helped a little bit

3 0
3 years ago
A 1.0 M solution of a compound with 2 ionizable groups (pKa's = 6.2 and 9.5; 100 mL total) has a pH of 6.8. If a biochemist adds
juin [17]

Answer:

pH = 9,32

Explanation:

The compound with 2 ionizable groups has the following equilibriums:

H₂M ⇄ HM⁻ + H⁺ pka = 6,2

HM⁻ ⇄ M²⁻ + H⁺ pka = 9,5

The reaction of M²⁻ with HCl is:

M²⁻ + HCl → HM⁻ + Cl⁻

The moles of M²⁻ are:

0,100L×1,0M = 0,1moles

And moles of HCl are:

0,060L×1,0M = 0,06moles

That means that moles of M²⁻ will be 0,1-0,06 = 0,04mol and moles of HM⁻ will be the same than HCl, 0,06mol

Using Henderson-Hasselbalch formula:

pH = pka + log₁₀ [M²⁻] / [HM⁻]

Replacing:

pH = 9,5 + log₁₀ [0,04] / [0,06]

<em>pH = 9,32</em>

<em></em>

I hope it helps!

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4 years ago
A solution that dissloves completely is called a?
snow_tiger [21]

soluble substances dissolves in solvents

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3 years ago
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Why should the wearing of uniforms be discontinued in highscho​
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Because there is no need for them
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