Your answer is D. You're Welcome
Answer:
It has to do with increasing the entropy of the universe.
Explanation:
The modern definition of entropy is that it is the extent to which a system is able to disperse its energy. Energy (such as heat!) likes to spread itself out, so that as many states as possible are occupied with the least amount of energy.
Answer : Option B) Lead
Explanation : Lead is chemical element which damages<span> the central nervous system, cardiovascular system, reproductive system, hematological system, and kidneys with overexposure as compared to other elements in the given option.</span>
Answer:
Number of produced moles of carbondioxide is 0.113 mol.
Explanation:
Excess of sulphuric acid is present.And the sodium carbonate is completely consumed.
Molar mass of sodium carbonate = 105.99g/mol
Given mass of sodium carbonate =12 g/mol


one mole of sodium carbonate produce one mole of carbondioxide.
0.113 mole of sodium carbonate produce 0.113 mole of carbondioxide.


Therefore, 0.113 mol of carbondioxide produced in flask 7.
Answer:
Balanced chemical equation:
C₃H₈ + 5O₂ → 4H₂O + 3CO₂
Explanation:
Chemical equation:
C₃H₈ + O₂ → H₂O + CO₂
Balanced chemical equation:
C₃H₈ + 5O₂ → 4H₂O + 3CO₂
1st step:
Left side Right side
C = 3 C = 1
H = 8 H = 2
O = 2 O = 3
2nd step:
C₃H₈ + O₂ → H₂O + 3CO₂
Left side Right side
C = 3 C = 1×3 = 3
H = 8 H = 2
O = 2 O = 6+1 = 7
3rd step:
C₃H₈ + O₂ → 4H₂O + 3CO₂
Left side Right side
C = 3 C = 1×3 = 3
H = 8 H = 2×4 = 8
O = 2 O = 6+4 = 10
4th step:
C₃H₈ + 5O₂ → 4H₂O + 3CO₂
Left side Right side
C = 3 C = 1×3 = 3
H = 8 H = 2×4 = 8
O = 2×5= 10 O = 6+4 = 10