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2 years ago

Which of the following is an example of a decomposition reaction?

Chemistry

1 answer:

Flura [38]2 years ago

8 0

Answer:

A simple example of decomposition reaction is hydrolysis of water where a water molecule is broken down into hydrogen and oxygen gas.

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MgNH4PO4•6H2O loses H2O in a stepwise fashion as it is heated. Between 40 degrees celsius and 60 degrees celsius, the monohydrat

tino4ka555 [31]

Answer:

$\%\ Composition\ of\ phosphorus=20.00\ \%$

Explanation:

The molecular formula of the monohydrate formed = $MgNH_4PO_4.H_2O$

The molecular mass of the monohydrate formed = $Mass_{Mg}+Mass_{N}+6\times Mass_{H}+5\times Mass_O$

So, Mass = 24 + 14 + 6 × 1 + 5 × 16 = 155 g

Mass of phosphorus = 31 g

Thus,

$\%\ Composition\ of\ phosphorus =\frac{Mass_{phosphorus}}{Total\ mass}\times 100$

$\%\ Composition\ of\ phosphorus=\frac{31}{155}\times 100$

$\%\ Composition\ of\ phosphorus=20.00\ \%$

4 0

3 years ago

The answer please thank you

otez555 [7]

Answer:

Explanation:

5 0

3 years ago

Working with one sample at a time, add water to the glass one tablespoon at a time. Water should soak the sample from the bottom

Vedmedyk [2.9K]

Answer:

This is confusing

but if you still need help, you can search it online

Explanation:

7 0

3 years ago

Read 2 more answers

During chemical weathering, forsterite is dissolved by the carbonic acid in rainwater. The weathering reaction is as follows:

Semenov [28]

Answer:

Keqq = 310

Note: Some parts of the question were missing. The missing values are used in the explanation below.

Explanation:

<em>Given values: ΔH° = -178.8 kJ/mol = -178800 J/mol; T = 25°C = 298.15 K; ΔS° = -552 J/mol.K; R = 8.3145 J/mol.K</em>

Using the formula ΔG° = -RT㏑Keq

㏑Keq = ΔG°/(-RT)

where ΔG° = ΔH° - TΔS°

㏑Keq = ΔH° - TΔS°/(-RT)

㏑Keq = {-178800 - (-552 * 298.15)} / -(8.3145 * 298.15)

㏑Keq = -14221.2/-2478.968175

㏑Keq = 5.73674166

Keq = e⁵°⁷³⁶⁷⁴¹⁶⁶

Keq = 310.05

4 0

4 years ago

Poh of a solution with a ph of 5.00

creativ13 [48]

Answer:

Explanation:

14-5.=pOH

- Hope that helps! Please let me know if you need further explanation.

8 0

3 years ago