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Bas_tet [7]
3 years ago
15

What element must combine with the metal for oxidation to take place?

Chemistry
2 answers:
Ksenya-84 [330]3 years ago
8 0
Lithium with oxygen
vlabodo [156]3 years ago
7 0
Lithium with oxygen
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Wat substance cannot be separated physically or chemically?
Tresset [83]

Answer:

Anything that cannot be separated physically or chemically is an element.

5 0
3 years ago
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Consider the reaction below in a closed flask. At 200 o C, the equilibrium constant (Kp) is 2.40 × 103 . 2 NO (g)  N2 (g) + O2
olga55 [171]

Explanation:

Since, the given reaction is as follows.

       2NO(g) \rightleftharpoons N_{2}(g) + O_{2}(g)

Initial:    36.1 atm                 0          0

Change:    2x                      x           x

Equilibrium: (36.1 - 2x)       x            x

Now, expression for K_{p} of this reaction is as follows.

            K_{p} = \frac{[N_{2}][O_{2}]}{[NO]^{2}}

As the initial pressure of NO is 36.1 atm. Hence, partial pressure of O_{2} at equilibrium will be calculated as follows.

              K_{p} = \frac{[N_{2}][O_{2}]}{[NO]^{2}}

        2.40 \times 10^{3} = \frac{x \times x}{(36.1 - 2x)^{2}}

                 x = 18.1 atm

Thus, we can conclude that partial pressure of O_{2} at equilibrium is 18.1 atm.

5 0
3 years ago
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Calculate the root mean square (rms) average speed of the atoms in a sample of xenon gas at 0.15 atm and -55c
GrogVix [38]
Answer:
Vrms is 149.7266 m/sec

Explanation:
The root means square velocity of a gas can be calculated as follows:
Vrms = \sqrt{ \frac{3RT}{M}}
where:
R is the ideal gas constant = 8.3145
T is absolute temperature = -55 + 273 = 118 degrees kelvin
M is the molar mass of the gas = 131.293 grams = 0.131293 kg

Substituting with these givens in the above equation, we would find that the Vrms is 149.7266 m/sec

Hope this helps :)
7 0
4 years ago
Which are the two main ways that minerals can be classified?
Pachacha [2.7K]
You’re answer for this question would be b
6 0
3 years ago
Help!!!
Paha777 [63]

那是因为我很笨,我不知道,但无论如何

Explanation:

ok

7 0
3 years ago
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