Mass of CoCO3<span> is </span><span>118.9421 g/mol</span>
Answer: C. Number of valence electrons
Explanation: A group is a vertical column in the periodic table, which signifies the number of valence shell electrons in an element's atom. Example: all the elements in group 1 have 1 electron in their outer most shell.
Answer:
The answer to your question is 0.3 g of H₂
Explanation:
Data
N₂ (g) = 1.4 g
H₂ (g) = ?
Balanced Reaction
N₂(g) + 3H₂ (g) ⇒ 2NH₃ (g)
Process
1.- Calculate the atomic mass of nitrogen and hydrogen.
N₂ = 14 x 2 = 28 g
H₂ = 1 x 6 = 6 g
2.- Use proportions and cross multiplication to solve it
28 g of N₂ ------------------- 6 g of H₂
1.4 g of N₂ -------------------- x
x = (1.4 x 6) / 28
x = 0.3 g of Hydrogen
The only thing you need to do to solve this task is to find :ΔS° and Δ<span>H</span>°<span><span>
</span></span>After that, just use this formula:
ΔG=ΔH°−TΔS°
Just calculate all of them, you have all the index.
The answer is 2 15 12 6
hope this would help you