Answer:
.900 J / g-C°
Explanation:
I assume you are looking for the specific heat of the metal
Specific heat = J / g-C
= 6640 J / 348 g[ (43.6 - 22.4) ] = .900 J / g-C
Following are the chemical and structural formulae of said complex compound,
Answer:
Mass = 312 g
Explanation:
Given data:
Number of molecules of H₂ = 9.4 × 10²⁵
Mass in gram = ?
Solution:
First of all we will calculate the number of moles of H₂.
1 mole of H₂ contain 6.022× 10²³ molecules
9.4 × 10²⁵ molecules × 1 mol / 6.022× 10²³ molecules
1.56× 10² mol
156 moles of H₂:
Mass in gram:
Mass = number of mole × molar mass
Mass = 156 mol × 2 g/mol
Mass = 312 g
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Answer:
- <em>The inertness of the noble gases is due to </em><u>the fact that their outermost main energy level of electrons (valence shell) is full.</u>
Explanation:
<em>Inertiness of the noble gases</em> refers to their lack of reactivity, i.e. the stability provided by a full valence electron shell.
The noble gases are He, Ne, Ar, Kr, Xe, Rd, and, the most recently discovered, Og.
They are located in the last column (18) of the periodic table.
Then, when you do the electron configuration of the noble gases, you find they have the outermost prinicpal energy level full. These are their electron configurations using the abbreviated form:
Being their valence orbitals full, these elements will not be very likely to exchange or share electrons, which is the reason of their inertness.
This does not mean that they do not react at all. Xe and F (the most reactive nonmetal) form some compounds.
