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-BARSIC- [3]
3 years ago
10

Please help me!!!!!!!!

Chemistry
1 answer:
IrinaVladis [17]3 years ago
7 0
Its surface runoff as shown in the diagram.
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Elements whose names end with âium are usually metals; sodium is one example. Identify a nonmetal whose name also ends with âium
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Answer: Helium (He) and Selenium (Se) both are non metals ends with ium sound

Explanation:

He is a inert gas and Se belongs to oxygen family (VI A group)

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A forest area is being used for a new housing development. Most of the trees have been removed to make room for the
pantera1 [17]

Answer:

The correct answer would be - lose their native habitats are forced to migrate into new areas in search of shelter and food.

Explanation:

The removal of trees or deforestation to build a housing or city planning or development impact the birds and other animals of that area. Cutting most of the trees from the area will result in a decrease in available food, shelter, and breeding habitat.

It causes complete removal of bird species and forced them to migrate to a new place in search of places that will provide a source of shelter and food for birds.

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2 years ago
Digestion is the process of breaking down food into substances that the can use. Which of the following is a physical change tha
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C - Enzymes help break down carbohydrates.
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An aqueous solution of potassium sulfate (K2SO4) has a freezing point of -2.24
iragen [17]
An aqueous solution of potassium sulfate exhibits colligative properties. Colligative properties are properties that depends on the concentration of a substance in a solution. These properties are freezing point depression, vapor pressure lowering, osmotic pressure and boiling point elevation. For this problem we use the concept of freezing point depression since we are given the freezing point of the solution. Freezing point depression is as:
 
ΔT = -k(f) x m x i
-2.24 - 0 = -1.86 x m x 3
<span>m = 0.4014

Thus, the molality of the solution is 0.4014.</span>
7 0
3 years ago
Which phase change is exothermic?
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Freezing, condensation, Deposition.
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