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Ca(OH)2 + HCl → CaCl + H2O is not a correct acid- base neutralization reaction
<em><u>Explanation</u></em>
<em> Acid and base react to form salt and water.</em>
The reaction of Ca(OH)2 + HCl → CaCl2 +H2O is not correct because
- The formula of salt formed is incorrect. It is suppose to be CaCl2 since Ca has a charge of 2+ while cl- has a charge of -1. Therefore to form ionic bond 2 Cl ion are needed.
- The equation is not balanced. there is suppose to be 2 in front of HCl and in front of H2O
Therefore the correct acid -base neutralization reaction is as below
Ca(OH)2 + 2HCl→ CaCl2 + 2H2O
Answer:
Mass does not change based on gravity
Explanation:
Mass is how much matter is in an object. That's why we have the same mass on Moon, Neptune, etc.
But weight depends on gravity. That's why our weight on the moon is less than Earth because the Moon's gravity is less than Earth.
Answer:
B 100 cm3
Explanation:
The balanced equation is given as;
2H2(g)+ O2(g) --> 2H2O(g)
From the reaction stochiometry, 2 cm3 of H2 would react with 1 cm3 of O2 to form 2 cm3 of H2O
Before Reaction --> 100cm3 of H2, 25cm3 of O2, 0cm3 of H2O
During Reaction --> 50cm3 of H2, 25cm3 of O2, 50cm3 of H2O
(Oxygen is sed uup in the reaction)
After Reaction --> 50cm3 of H2, 0cm3 of O2, 50cm3 of H2O
Total volume left = Unreacted H2 (50cm3) + 50cm3 of H2O formed
Total Volume left = 50 + 50 = 100cm3
Answer:An increase in temperature commonly will increase the rate of reaction. An growth in temperature will improve the common kinetic electricity of the reactant molecules.
Explanation: