density= mass/volume
we need the volume of the metal to find the density, in which case the answer would be 64.2/volume=density
Answer:
11 is the coefficient for C to balance the equation
Explanation:
C₁₂H₂₂O₁₁(s) + H₂SO₄(aq) + 1/2 O₂(g) → 11C(s) + CO₂(g) + 12H₂O(g) + SO₂(g)
12 Carbons in left side → 12 Carbons in right side
12 in sucrose → 11 in solid C + 1 in the CO₂
24 Hydrogens in left side → 24 Hydrogens in right side
22 in sucrose + 2 in sulfuric → 24 in water vapor
1 S in left side → 1 S in right side
1 S in sulfuric → 1 S in sulfur dioxide
16 O in left side → 16 O in right side
11 O in sucrose + 4 in sulfuric + 1 O at ground state → 2 O in carbon dioxide + 12 in water vapor + 2 in sulfur dioxide
Can u plz tell where are the statements
No because most of them are forces
Answer:
Oxygen is the limiting reactant
Explanation:
2H2 + O2 ⇒ 2H2O
2mol 1mol 2mol
2moles of hydrogen will require 1mol of oxygen to produce 2mol of water
in the question, 6.45g of O2 reacts with 1.13g of H2.
molar mass of O2 = 16*2 =32g/mol
molar mass of H2 = 1*2=2g/mol
number of moles of O2 = mass/molar mass
= 6.45/32
=0.20156moles
number of moles of H2 = 1.13/2
=0.565moles
but 0.20156moles of O2 will require 0.40312moles of hydrogen
2H2 + O2 ⇒ 2H2O
2mol 1mol 2mol
0.40312mole 0.20156mol
0.40312moles is less than 0.565moles of H2 present, which means hydrogen is in excess hence implying that oxygen is the limiting reactant
