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kvasek [131]
2 years ago
14

What ion does sodium (Na) form

Chemistry
1 answer:
lana [24]2 years ago
4 0
Probably ion with a positive 1 charge.

Explained briefly
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noble gases are used in many situations where a safe and constant environment must be maintained. for example, helium is used to
Lapatulllka [165]

Answer:

Noble gases have a complete valence electron shell making them stable and nonreactive.

Explanation:

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2 years ago
A process at constant T and P can be described as spontaneous if ΔG < 0 and nonspontaneous if ΔG > 0. Over what range of t
creativ13 [48]

Answer:

Incomplete question, it is lacking the data it makes reference. The missing data from Chegg is:

                              2 SO3(g)   →          2 SO2(g) + O2(g)

ΔHf° (kJ mol-1)  -395.7                        -296.8

S° (J K-1 mol-1)  256.8                         248.2              205.1

ΔH° =  kJ

S° =  J K⁻¹

Explanation:

The method to solve this problem calls for the use of the Gibbs standard free energy change:

ΔG = ΔrxnH - TΔSrxn

We know a reaction is spontaneous when ΔG is < 0, so to answer this question we need to solve for the temperature, T, at which ΔG becomes negative.

Now as mentioned in the hint, we need to determine  ΔrxnH and ΔSrxn, which are given by

ΔrxnH = ∑ ν x ΔfHº products - ∑ ν x ΔfHº reactants

where  ν  is the stoichiometric coefficient in the balanced chemical equation.

For ΔS we have likewise

ΔrxnS =  ∑ ν x ΔSº products - ∑ ν x ΔSº reactants

Thus,

ΔrxnH(kJmol⁻¹) =  2 x (-296.8) - 2 x ( -395.7 ) = 197.8 kJ

ΔrxnS ( JK⁻¹) = 2 x 248.2 + 205.1 - 2 x 256.8 = 187.9 JK⁻¹ = 0.1879 kJK⁻¹

So ΔG kJ =  197.8 - T(0.1879)

and the reaction will become spontaneous when the term  T(0.1879)  becomes greater that 197.8,

0 = 197.8 - 0.1879 T  ⇒ T = 1052 K

so the reaction is spontaneous at temperatures greater than 1052 K (780 ºC)

4 0
3 years ago
Practice It!
Ostrovityanka [42]

Answer:

Explanation:

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Space technology may help us inhabit another planet or live in space in the future.

These are the correct statements

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3 years ago
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Many bacteria cannot reproduce and cooler temperatures in our destroyed at high temperatures. How do you humans take advantage o
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freezer and refrigerator too cold for most bacteria to grow .oven too hot for bacteria to survive

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What is agovado constant
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6.02214086 x 10^23 mol^-1
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