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3 years ago

Oxygen is produced by the reaction of sodium peroxide, Na2O2 , and water.

Chemistry

1 answer:

ZanzabumX [31]3 years ago

5 0

Answer: 23.53g

Explanation:

5.2/(2x16) = 0.1625 mol

0.1625 x 2 = 0.325 mol

0.325 x (23 x 2 + 16 x 2) = 78 x 0.325 = 23.53g

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One of the main forces driving plate tectonics is the dissipation of heat from the mantle, through convection or large scale upw

IRINA_888 [86]

Answer:

Explanation:

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4 years ago

How does the number of electrons relate to an element's atomic number? Why?

RSB [31]

The number of protons in the nucleus of the atom is equal to the atomic number. The number of electrons in a neutral atom is equal to the number of protons. The mass number of the atom is equal to the sum of the number of protons and neutrons in the nucleus.
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8 0

4 years ago

Read 2 more answers

Find the ΔH for the reaction below, given the following reactions and subsequent ΔH values: PCl5(g) → PCl3(g) + Cl2(g)

nalin [4]

Answer:

The value of $\Delta H$ for the desired reaction will be 249.75 KJ.

Explanation:

The desired reaction is shown below

$\textrm{PCl}_{5}\left ( g \right )\rightarrow \textrm{PCl}_{3}\left ( g \right )+\textrm{Cl}_{2}\left ( g \right )$

The desired reaction can be obtained by adding the given reactions and then dividing both sides by 4.

$P_{4}\left ( s \right )+6Cl_{2}\left ( g \right )\rightarrow 4PCl_{3}\left ( g \right ) \\4PCl_{5}\left ( g \right )\rightarrow P_{4}\left ( s \right )+10Cl_{2}\left ( g \right )$

Net Enthalpy change for the desired reaction

$\displaystyle \frac{3438-2439}{4} \textrm{ KJ} = 249.75 \textrm{ KJ}$

$\Delta H = 249.75 \textrm{ KJ}$

6 0

4 years ago

N2+ 3 H2 -> 2 NH3 If 12.0 g of H2 reacts with excess N2. then what mass of NH3 will be produced?

Vinil7 [7]

Hey mate here is pratyush for your help from India
..

your answer is in the attachment ..

the answer is 68g of NH3 will be produced.

hope it helps you.

be brainly

7 0

3 years ago

2.15g of an unknown gas at 51c and 1.00 atm is stored in a 2.95 L flask

PSYCHO15rus [73]

<span>MM = [(2.15)(0.08206)(344)]/[(1.1)(1.75)] = 31.53 g/mol Remember to convert temperature to Kelvin.</span>

3 0

3 years ago