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3 years ago

What processes contribute water to surface water sources?(science)

1 answer:

5 0

Of the many processes involved in the water cycle, the most important are evaporation, transpiration, condensation, precipitation, and runoff. Although the total amount of water within the cycle remains essentially constant, its distribution among the various processes is continually changing.

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A unimolecular elementary step involves only a single reactant that breaks apart.a) trueb) false

torisob [31]

Answer:

True

Explanation:

The correct option is; True.

Unimolecular elementary steps in a reaction requires only one reactants, they are usually decomposition reactions. They take the general form;

A --> B + C

4 0

3 years ago

Some hypothetical alloy is composed of 12. 5 wt% of metal a and 87. 5 wt% of metal b. If the densities of metals a and b are 4.

gavmur [86]

Answer:

The number of

atoms in the unit cell is 2

Explanation:

7 0

2 years ago

Name a common greenhouse gas containing ony hydrogen and oxygen

ruslelena [56]

<span>H2O, or water, in the form of water vapor, is a very strong greenhouse gas. Water vapor is part of a feedback loop where as the temperature increases, so does the water vapor, basically creating its own system where more water vapor is constantly being applied as a greenhouse gas to the atmosphere by its own evaporation into the atmosphere.</span>

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3 years ago

A geochemist measures the concentration of salt dissolved in Lake Parsons and finds a concentration of 21.0 gL⁻¹. The geochemist

dedylja [7]

Answer:

The percentage of Lake Parsons which has evaporated since it became isolated is 68.24%.

Explanation:

The concentration of salt dissolved in Lake Parson = 21.0 g/L

= In 1 L of lake Parson water = 21.0 g of salt

The concentration of salt in several nearby non-isolated lakes = 6.67 g/L

The salt concentration in Lake Parsons before it became isolated = 6.67 g/L

In 1 L of lake water = 6.67 g of salt

If 1 L of lake Parson water has 6.67 g of salt. Then 21.0 grams of salt will be in ;

$\frac{1}{6.67}\times 21.0 L = 3.15 L$

Water evaporated = 3.15 L - 1 L = 2.15 L

The percentage of Lake Parsons which has evaporated since it became isolated:

$\frac{2.15 L}{3.15 L}\times 100=68.25\%$

5 0

4 years ago

Please help!

hammer [34]

The answer is B) Electrons flow from negitive end to positive end because opposites attract

7 0

3 years ago