For the reactants,
- The oxidation number of hydrogen = +1
- The oxidation number of oxygen = -2
- The oxidation number of arsenic = +5
- The oxidation number of carbon = +3
For the products,
- The oxidation number of hydrogen = +1
- The oxidation number of oxygen = -2
- The oxidation number of arsenic = +3
- The oxidation number of carbon = +4
Here, arsenic (+5 to +3) and carbon (+3 to +4) are the only oxidation numbers changing.
Note that an increase in oxidation number means electrons are lost. Thus oxidation is occurring, and a decrease in oxidation number means electrons are being gained, and thus reduction is occurring.
Also, the compound that contains the element being oxidized is the reducing agent, and the compound that contains the element being reduced is the oxidizing agent.
So, the answers are:
name of the element oxidized: Carbon
name of the element reduced: Arsenic
formula of the oxidizing agent: 
formula of the reducing agent: 
Enzymes are biological catalysts which means they accelerate chemical reactions.
Hope this helps :)
Two objects are dropped from a height of 100 m.
If one object is heavier than the
other object, which of the following is true?
(Note: ignore air resistance)
(a) The heavier object will experience equal force
and accelerate more slowly.
(b) The heavier object will experience more force
and accelerate more quickly
(c) The heavier object will experience equal force
and accelerate at the same rate
(d) The heavier object will experience more force
and accelerate at the same rate
Answer: Region 3
Explanation: The temperature and time graph suggests that region 3 is the region in which the substance can co exist in both the phases that is solid phase and liquid phase.
Region 1 explains that the the solid has just started melting and there occurs a break point and then region 2 again explains that the solid is taking more time with temperature to get converted into the liquid and thus region 3 explains the equilibrium between the two phases.
Answer:
Increased atmospheric carbon dioxide will cause increased ocean surface temperatures.
Explanation:
Greenhouse gases of which CO2 is a typical example are known to cause a gradual and steady increase in the surface temperature of the earth by trapping infrared rays close to the surface of the earth.
As the surface temperature of the earth rises, the surface temperature of the oceans rises also leading to the tendency towards hurricanes.
Hurricanes are violent storms which are known to form near the equator over warm ocean waters.
Hence, increased atmospheric carbon dioxide will cause increased ocean surface temperature which in turn increases the chances of the occurrence of hurricanes.
