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Sidana [21]
3 years ago
8

Which best describes a role of animals in the water cycle? In the water cycle, clouds form as a result of

Chemistry
2 answers:
Ivenika [448]3 years ago
8 0

Answer:

Animals consume water, and they urinate. The moisture is evaporated by the sun, thus making clouds. Clouds are made out of evaporated water, and when they get full it rains and the cycle continues.

vredina [299]3 years ago
7 0

Answer:

Animals contribute water mainly through breathing, perspiration and urination. When droplets of sweat evaporate from the surface of an animal's skin, they take a bit of the animal's body heat with them. They also turn into water vapor and enter the water cycle, just like water evaporating from plant leaves. Clouds are created when water vapor, an invisible gas, turns into liquid water droplets. These water droplets form on tiny particles, like dust, that are floating in the air.

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According to the law of conservation of mass, in all chemical reactions _____.
Fynjy0 [20]

changing the bonds changes the mass.

your welcome!

7 0
3 years ago
Read 2 more answers
What is the correct name for a molecule containing 2 nitrogen and 4 oxygen?
Yuki888 [10]
Dinitrogen tetroxide
3 0
3 years ago
Calculate the percent activity of the radioactive isotope iodine-131 remaining after 3 half-lives.
vovangra [49]
Half life of a radio-active material is refereed to the time required for reducing its activity to 50 %.

Now, when I-131 passes 1st half life, it's activity will reduce to half i.e. 50%

When, I-131 passes 2nd half life, activity of I-131 will be reduced to 25%

On passing, 3rd half-life, percent activity of the I-131 <span>remaining will be 12.5 %.</span>
3 0
4 years ago
A chemical bond formed when two atoms share two pairs of electrons is a ________ bond; it is best described as ________.
cupoosta [38]

Answer:

A chemical bond formed when two atoms share two pairs of electrons is a<em> </em><em>d</em><em>o</em><em>u</em><em>b</em><em>l</em><em>e</em><em> </em>bond; it is best described as a <em>c</em><em>o</em><em>v</em><em>a</em><em>l</em><em>e</em><em>n</em><em>t</em><em> </em><em>b</em><em>o</em><em>n</em><em>d</em><em>.</em>

Explanation:

A chemical bond in which two pairs of electrons are shared has to be defined as covalent since ionic bonds don't involve electron sharing. They consist only of electrostatic attraction between ions.

6 0
3 years ago
How many moles of each element are in one mole of Be(OH)2?
blondinia [14]

Answer:

Explanation:

To find the number of moles of each element present in 1 mole of Be(OH)₂, we use the ratio of the molar masses of the elements to the compound and multiply by the given mole.

Molar mass of Be(OH)₂ = 9 + 2(16+1) = 43g/mol

number of moles of Be = \frac{9}{43} x 1 = 0.209mole

number of moles of O =  \frac{32}{43} x 1 = 0.744mole

number of moles of H =  \frac{2}{43} x 1 = 0.047mole

3 0
3 years ago
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