Answer:
Calcium oxide, commonly known as lime, is a chemical compound with the formula CaO.
Answer:
Balanced chemical equation:
2Al + 3H₂SO₄ → Al₂(SO₄)₃ + 3H₂
Explanation:
Chemical equation:
Al + H₂SO₄ → Al₂(SO₄)₃ + H₂
Balanced chemical equation:
2Al + 3H₂SO₄ → Al₂(SO₄)₃ + 3H₂
Steps:
Let balance the SO₄ first.
Al + 3H₂SO₄ → Al₂(SO₄)₃ + H₂
There are three H₂ on left so put the coefficient three on right too.
Al + 3H₂SO₄ → Al₂(SO₄)₃ + 3H₂
Two Al on right and one on left so we will put the coefficient two on left.
2Al + 3H₂SO₄ → Al₂(SO₄)₃ + 3H₂
All atoms are correctly balanced.
Its called D. evaporation
when mercury receives enough thermal energy that is converted into kinetic energy so high that it breaks the weak bonds holding the atoms together and causes them to become gaseous
hope that helps <span />
Answer:
% Mg = 16.2 % ≈ 16 %
%N = 18.9 % ≈ 19 %
% O = 64.9 % ≈ 65 %
Explanation:
Step 1: Data given
Molar mass Mg(NO3)2 = 148 g/mol
Molar mass Mg = 24 g/mol
Molar mass N = 14 g/mol
Molar mass O = 16 g/mol
Step 2: Calculate the percent composition
% Mg = (24/148) *100%
% Mg = 16.2 % ≈ 16 %
% N = (2*14 / 148) * 100%
%N = 18.9 % ≈ 19 %
% O = (6*16/148) * 100%
% O = 64.9 % ≈ 65 %
