Explanation:
Element Atomic number Electronic configuration Hydrogen 1 1 Helium 2 2 Lithium 3 2,1 Beryllium 4 2,2 Boron 5 2,3 Carbon 6 2,4 Nitrogen 7 2,5 Oxygen 8 2,6 Fluorine 9 2,7 Neon 10 2,8
The elements of these groups are called representative elements.
Answer:
Decomposition reaction
Explanation:
Decomposition reaction:
It is the reaction in which one substance is converted into the two or more products.
The decomposition reactions always involved one substance to decompose.
General chemical equation:
AB → A + B
The given chemical equation:
NH₄NO₃(s) → N₂O (g) + H₂O(g)
Ammonium nitrate is decomposed into nitrous oxide and water vapors.
Balanced chemical equation:
NH₄NO₃(s) → N₂O (g) + 2H₂O(g)
when it is rapidly heated it form N₂ and O₂.
2NH₄NO₃ → 2N₂ + O₂ + 4H₂O
By increasing the temperature decomposition is increased and in limited space due to pressure it may cause explosion.
Answer:
Explanation:
The dilution formula is
s₁ v₁ = s₂ v₂
s₁ = .0043
v₁= 2 mL
v₂ = 100 mL
s₂ = ?
putting the values
.0043 x 2 = s₂ x 100
s₂ = .000086 = 86.0 x 10⁻⁶
Answer:39.8375
Explanation:
The mole for the equation is 1:1
Then the molar mass of KCl is 74.5g
Molar mass of k is 39
74.5g of KCl gives 39g of k
76.10g of KCl gives xg of k
X= 76.10×39/74.5
X= 2967.9/7
X= 39.8375
Answer: Its acceleration is -5 meters/second2.
Explanation: