Question

Explain the process of photosynthesis

Answer 1

Answer:

­R­ust is the common name for a very common compound, iron oxide. Iron oxide, the chemical Fe2O3, is common because iron combines very readily with oxygen -- so readily, in fact, that pure iron is only rarely found in nature. Iron (or steel) rusting is an example of corrosion

When iron is exposed to water or air over a period of time, the iron reacts with oxygen in the presence of moisture to form a reddish-brown chemical compound, iron oxide. This is referred to as rust. So chemically, rust is hydrated iron(III) oxide or Fe2O3.nH2O. The chemical equation for the same is given by:

4Fe(OH)2 + O2 + xH2O → 2Fe2O3.(x+4)H2O

Iron reacts very readily with oxygen. This is one of the reasons as to why it is rare to find pure iron in nature.

Factors Affecting Rusting

There are several factors that assist and accelerate the process of rusting. Some of them are:

Moisture: Iron exposed to rains is the most common reason.

Acid: It accelerates rusting. When exposed to acid rains, iron rusts faster. On the other hand, alkalis inhibit rusting.

Salt: Iron tends to rust faster in sea, due to the presence of salt.

Impurity: Pure iron rusts slower than the iron mass which contains a mixture of metals.

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Answer 2

Answer:

Step 1-Light Dependent. CO2 and H2O enter the leaf.

Step 2- Light Dependent. Light hits the pigment in the membrane of a thylakoid, splitting the H2O into O2.

Step 3- Light Dependent. The electrons move down to enzymes.

Step 4-Light Dependent. ...

Step 5-Light independent. ...

Step 6-Light independent. ...

calvin cycle.

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