Answer:
CaCl2 + 2NaOH -> 2NaCl + Ca(OH)2
Explanation:
Answer:
iii) Increasing atmospheric concentrations of carbon dioxide could alter Earth's climate
Explanation:
Increased concentration of carbon dioxide traps heat in the earth or insulate the Earth leading to increase in temperature of the Earth. Example of the effect is retreating polar ice caps as a result of melting. Having an understanding of the release and absorption of carbon dioxide, one of the green house gases, is important to predict global warming trends and understand the climate. Other examples of green houses gas include water vapor, methane, CFC, nitrous oxide and others
Correct Question: what is the oxidizing agent in the reaction.
2MnO4–(aq) +10Cl–(aq) + 16H+(aq) --------> 5Cl2(g) + 2Mn2+(aq) +8H2O(l)
Answer: MnO4-is the oxidizing agent
Explanation:
In the reaction 2MnO4–(aq) +10Cl–(aq) + 16H+(aq) --------> 5Cl2(g) + 2Mn2+(aq) +8H2O(l)
Oxidizing agent oxidizes other molecules while the themselves get reduced.
oxidizing agents give away Oxygen to other compounds.
MnO4-is the oxidizing agent because
On the reactants side
Oxidation number of Mn in 2MnO4- is +7
Oxidation number of Cl- is -1
On the products side
Oxidation number of Mn is +2
While oxidation number of Cl is zero
Therefore the oxidizing agent is 2MnO4 because is oxidizes Chlorine from -1 to 0 while itself got reduced from oxidation state of +7 to +2
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