Is a particle with a positive charge.:)

Describe how water contributes to the fitness of the environment to support life.

andrew11 [14]

Water contributes to the fitness of the environment to support life by acting as a Solvent for molecules to interact Moderate Earth's climate.

Water contributes to the fitness of the environment to support life in several ways :

Life on Earth began in water and evolved there for 3 billion years before colonizing the land.
Even terrestrial organisms are tied to water.
Most cells are surrounded by water.
Cells are about 70–95% water.
Water is a reactant in many of the chemical reactions of life.
Water is the only common substance that exists in the natural world in all three physical states of matter: solid ice, liquid water, and water vapour.
Water stabilizes air temperatures by absorbing heat from warmer air and releasing heat to cooler air.
Water can absorb or release relatively large amounts of heat with only a slight change in its own temperature.
Water’s high heat of vaporization moderates climate.
Much of the sun’s heat absorbed by tropical oceans is used for evaporation of surface water.
Water is unusual because it is less dense as a solid than as a cold liquid.
Most materials contract as they solidify, but water expands.
At temperatures above 4°C, water behaves like other liquids, expanding as it warms and contracting as it cools.
Water begins to freeze when its molecules are no longer moving vigorously enough to break their hydrogen bonds.
When water reaches 0°C, water becomes locked into a crystalline lattice, with each water molecule bonded to a maximum of four partners.

Learn more about Water here : brainly.com/question/5060579

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6 0

2 years ago

How many grams of glucose are in 11.5 moles?

qaws [65]

There are 2071.4662 grams of glucose in 11.5 moles.

Per 1 mole there are 180.15588 grams of glucose. 180.5588 x 11.5 =2076.4262

5 0

4 years ago

What is latice energy

velikii [3]

The energy required to separate a mole of an ionic solid into gaseous ions

3 0

3 years ago

Molten gallium reacts with arsenic to form the semiconductor, gallium arsenide, GaAs, used in light-emitting diodes and solar ce

Vsevolod [243]

Answer:

a) 1.2g of arsenic b) 0.64g of arsenic c) 3.481g of gallium d) 3.806g of gallium e) 2.61g arsenic

Explanation:

The balanced equation is:

Ga + As = GaAs, 1:1 mole ratio

a) mass (gallium)/ molar mass of Ga = 4/ 69.723 = 0.0574mol

Mass (arsenic)/ molar mass of As = 5.5/74.9216 = 0.0734, subtracting the moles from each other (knowing already that the ratio is 1:1), arsenic is in excess by 1.2g

b) repeating the procedure (changing the values)

It will be 0.0574 to 0.06593

Arsenic is in excess by 0.00854

0.00854* mass of arsenic (such must be done for the first remaining mole) = 0.64g

c) the mole ratio is 0.0574: 0.00747

Gallium is in excess by 0.05

Mass of excess gallium = 0.05* 69.723 = 3.481g

d) using the mass given, the new ratio is

0.128: 0.0734

Gallium is in excess by 0.054mol

Mass of excess gallium = 0.054*69.723 = 3.806g

e) using the mass again, the new ratio is 0.0574: 0.02,

Gallium is in excess by 0.0374*69.723 = 2.61g

7 0

3 years ago

What part of the microscope is the letter k?

snow_tiger [21]

Answer:

if you are asking k then the round one is condenser

if not then its a stage clip

6 0

3 years ago