Chap 2 homework

Physical Geography can be divided into several sub-fields, as follows: Geomorphology is the field concerned with understanding the surface of the Earth and the processes by which it is shaped, both at the present as well as in the past. Geomorphology as a field has several sub-fields that deal with the specific landforms of various environments e. Geomorphology seeks to understand landform history and dynamics, and predict future changes through a combination of field observation, physical experiment, and numerical modeling Geomorphometry.

Chap 2 homework

Single Replacement Reactions In a single replacement or displacement reaction one element replaces another element in a compound.

They follow one of the following two patterns: See the two examples below: First, chlorine is an element that forms an anion, so it can only replace an element that forms an anion, in this case bromine.

Second, chlorine and bromine are both diatomic molecules and must be written with a subscript of 2 when they are alone. They tell you the state that each molecule is in.

Aluminum forms a cation, so it can only replace iron Fewhich also is a cation. Not all single replacement reactions can occur.

Before you can write the products for any single displacement equation, you MUST check the activity series to see if the displacement is possible. There is a cation and an anion activity series. I listed both to the right. Elements higher on the chart can replace elements below it, but elements lower on the chart cannot replace elements higher on the chart.

For example, as we saw above in our two examples, chlorine, Cl, can replace bromine, Br, and aluminum, Al, can replace iron, Fe. Look at your charts. Note that on the Anion Activity Series, chlorine is higher than bromine.

Note on the Cation Activity Series chart that aluminum is higher than iron. If an element cannot replace the other element, the reaction is labeled N. See below for an example.

If I tried to reverse the reaction in example 2, lets see what would happen. Since iron is lower on the activity series chart than aluminum, it cannot replace it.

Chap 2 homework

When this occurs we label it N. One more important issue: Think of it as hydrogen hydroxide.Chapelwood (The Borden Dispatches) [Cherie Priest] on *FREE* shipping on qualifying offers.

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DSP FIRST 2e – Resources