1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
steposvetlana [31]
3 years ago
11

Earth’s cycles provide organisms with continued access to usable elements necessary for sustaining life. (True or False)

Chemistry
2 answers:
castortr0y [4]3 years ago
8 0

Answer:

True

Explanation:

There are several physical, chemical , biological and chemical –biological cycles in the earth’s atmosphere that keep on rotating the minerals with in the different segments of earth. There are several such cycles –  

a) Nitrogen cycle

b) Carbon cycle

c) Phosphorous cycle

d) Food cycle

e) Energy cycle ( trophic levels in a food web)

The primary constituents of all these cycle keep on changing their form from species to species so that these nutrient get available to all the living beings.

tensa zangetsu [6.8K]3 years ago
6 0
The answer is truer
You might be interested in
Can a electron be found in an exact spot within a atom
goldenfox [79]

Answer:

Electrons are located in an electron cloud, which is the area surrounding the nucleus of the atom. There is usually a higher probability of finding an electron closer to to the nucleus of an atom.

Explanation:

5 0
3 years ago
Which is a nonpolar molecule?
Colt1911 [192]
The answer is C- sulfur hexachlorine (SF6)

<span>S<span>F6 is the only molecule here that is non-polar. That's due to having the</span></span><span> fluorine atoms arranged in a way that, in pairs, they lie opposite to each other. Also, these pairs are perpendicular to each other on  three different axis.</span>

7 0
3 years ago
Read 2 more answers
The boiling point of water is 100ºC. The boiling point of acetone is 56ºC. Which statement about distilling a mixture of acetone
Anika [276]

Answer:

I think  Acetone will be  captured and cooled.

Explanation:

Distillation is a method of separation based on the difference in boiling point of two liquids.

The liquid that has a lower boiling point is first separated from the mixture. It vaporizes, cooled and collected before the liquid that has a higher boiling point.

In this case, acetone is captured and cooled before water since it has a boiling point of 56ºC and water has a boiling point of 100ºC.

3 0
1 year ago
The metal content of iron in ores can be determined by a redox procedure in which the sample is first oxidized with Br2 to conve
coldgirl [10]

Answer:

80.27%

Explanation:

Let's consider the following balanced equation.

2 Fe³⁺(aq) + Sn²⁺(aq) ⇒ 2Fe²⁺(aq) + Sn⁴⁺(aq)

First, we have to calculate the moles of Sn²⁺ that react.

\frac{0.1015molSn^{2+} }{1L} .13.28 \times 10^{-3} L=1.348\times 10^{-3}molSn^{2+}

We also know the following relations:

  • According to the balanced equation, 1 mole of Sn²⁺ reacts with 2 moles of Fe³⁺.
  • 1 mole of Fe³⁺ is oxidized from 1 mole of Fe.
  • The molar mass of Fe is 55.84 g/mol.

Then, for 1.348 × 10⁻3 moles of Sn²⁺:

1.348\times 10^{-3}molSn^{2+}.\frac{2molFe^{3+} }{1molSn^{2+} } .\frac{1molFe}{1molFe^{3+} } .\frac{55.84gFe}{1molFe} =0.1505gFe

If there are 0.1505 g of Fe in a 0.1875 g sample, the mass percentage of Fe is:

\frac{0.1505g}{0.1875g} \times 100 \% = 80.27\%

5 0
3 years ago
What is a wind turbine often used for?
kirill115 [55]

Answer:

A

Explanation:

Converting thermal energy into electrical energy

5 0
3 years ago
Read 2 more answers
Other questions:
  • An unknown liquid has a mass of 30.6 g
    13·1 answer
  • During an investigation a scientist heated 27 g of mercuric oxide till it decomposed to leave a dry product. The total mass of t
    6·2 answers
  • What is the density of hydrogen sulfide at 1.1 atm and 304K?
    5·1 answer
  • Population growth happened as nomadic tribes began to trap, catch, and keep migrating animals confined for food use. Which of th
    11·1 answer
  • State 2 ways in which adaptation help animals?
    9·1 answer
  • calculate the molarity of a solution that contains 2 moles of NaOH dissolve in 0.5 liter of the solution
    6·1 answer
  • Which lunar phrase follows a waning crescent phase?
    11·1 answer
  • Which of the following are true statements?
    14·1 answer
  • What is the surface composition of planets in the solar system?
    11·1 answer
  • Describing Rock Texture
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!