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3 years ago

Hydrologers study the availability of fresh water on the planet.

Chemistry

1 answer:

Dahasolnce [82]3 years ago

8 0

Answer:

Hydrologists study how water interacts with the earth's crust. For example, they may study how rainfall and snowfall cause erosion, create caves, percolate through soil and rock to become groundwater, or eventually reach the sea.Hydrologists strive to improve water quality and increase our access to water so that we can continue to make use of it in all the ways that are necessary to our lives. A hydrologist measures the stream flow in a tributary to the Coeur d'Alene River. layers of gases surrounding a planet or other celestial body

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What is the product of Na +CaSO4,

OverLord2011 [107]

Answer:

Na + CaSO4 = Na2SO4 + Ca

Explanation:

single displacement (substitution)

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3 years ago

The symbol for iron is Fe. The chemical symbol for oxygen is O. The formula for iron oxide, a type of rust is Fe2O3. How many ir

borishaifa [10]

The answer is B 2 Hope it helps

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3 years ago

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Marat540 [252]

Answer:

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3 years ago

The osmotic pressure, π, of a solution of glucose is 132 atm . find the molarity of the solution at 298 k.

Marina86 [1]

The formula for osmotic pressure is:

$\Pi = iMRT$

where $\Pi$ is osmotic pressure, $i$ is van't Hoff's factor, $M$ molarity, $R$ is Ideal gas constant, and T is Temperature.

$\Pi$ = 132 atm

The van't Hoff's factor for glucose, $i$ = 1

$R = 0.08206 Latmmol^{-1}K^{-1}$

$T = 298 K$

Substituting the values in the above equation we get,

$132 atm = 1\times M\times 0.08206 Latmmol^{-1}K^{-1}\times 298$

$M = \frac{132 atm}{1\times 0.08206 Latmmol^{-1}K^{-1}\times 298} = 5.4797 molL^{-1} \simeq 5.48 molL^{-1}$

So, the molarity of the solution is $5.48 molL^{-1}$ .

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3 years ago

If all of the electron groups around a single central atom are bonding, and the same outer atom is bonded to the central atom in

daser333 [38]

Answer:

It depends on the identity of the outer atom

Explanation:

We must recall that the polarity of a molecule depends on difference In electronegativity between atoms as well as the shape of the molecule.

When a central atom has no lone pairs and all the groups in the molecule are bonding, the identity and arrangement of the outer atoms will determine the polarity of the molecule.

A polar molecule is formed by certain types of outer atoms arranged in certain ways around the periodic table and vice versa.

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3 years ago