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alexandr1967 [171]
3 years ago
10

These goats are eating grass on a sunny day. What is happening to the carbon in the air around the living things on the mountain

? Is carbon moving into the air, moving out of the air, or both?.
Chemistry
1 answer:
polet [3.4K]3 years ago
8 0

Answer:

both

Explanation:

Carbon in the air around the living thing is moving in and out of its lungs. The movement is occurring at the same time. This is one of the most important gaseous exchange important to life.

  • The goats takes in oxygen gas from the surrounding and releases carbon dioxide in the process.
  • But, air is actually drawn in by the goat which is a mixture of several gases.
  • Air contains carbon dioxide which is a rich source of carbon
  • With the carbon dioxide from respiratory processes, the goat ejects and breathes out this waste carbon matter.
  • Therefore, the gaseous exchange in a goat involves the movement of carbon in and out of the air.
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For a particular isomer of C8H18, the combustion reaction produces 5104.1 kJ of heat per mole of C8H18(g) consumed, under standa
Vladimir79 [104]

Answer:

Explanation:

Hello,

Considering the chemical reaction, the enthalpy of reaction is given by:

ΔH°rxn=ΔfHCO2+ΔfHH2O-ΔfHC8H18

(ΔfHO2=0)

Taking into account that the reaction produces energy, ΔH°rxn is negative. No, solving for ΔfHC8H18:

ΔfHC8H18=-ΔH°rxn+8*ΔfHCO2+9*ΔfHH2O

ΔfHC8H18=-(-5104.1 kJ/mol)+9*(-292.74kJ/mol)+8*(-393.5 kJ/mol)

ΔfHC8H18=-678.56 kJ/mol

Best regards.

3 0
3 years ago
Give three example of univalent element​
Aloiza [94]

Answer:

Hydrogen and Chlorine

Explanation:

They are both an example in univalent atoms, because of their nature to form only one single bond.

I wasn't able to find another example, hope it helped! :)

4 0
2 years ago
Which of the following statements about the Earth’s atmosphere is true?
maksim [4K]
Carbon dioxide levels<span> in the </span>atmosphere<span> by 2050 are predicted to be about double what they were before the. Industrial Revolution. ... 1% or 2% per </span>decade<span>, consistent with a warming </span>atmosphere<span>. .... Species are not yet responding to climate change because average temperatures </span>have<span> only </span>increasedabout 0.8°C<span> globally


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8 0
3 years ago
An organic synthesis to make the pain reliever acetaminophen is supposed to produce 280 kg of product but instead produces 70 kg
Irina-Kira [14]

Answer: 75%

Explanation:

The following information can be gotten from the question:

Waste = 70kg

Theoretical yield = 280kg

Therefore, the actual yield will be the difference between the theoretical yield and the waste which will be:

= 280kg - 70kg = 210kg

The percent yield will now be:

= Actual yield / Theoretical yield × 100

= 210/280 × 100

= 3/4 × 100

= 75%

4 0
3 years ago
Help please!
Katyanochek1 [597]

The observation, in this case, is quantitative.

<h3>Quantitative observation</h3>

Quantitative observations are observations that can be recorded based on quantitative data. In other words, they are observations that can be assigned numerical values.

Quantitative observations are as opposed to qualitative observations because the former cannot be assigned numerical values. They can be ranked or qualified.

In this case, Danielle and Heather could assign numbers to the length, width, and height of the tank in order to calculate its volume.

More on quantitative observations can be found here: brainly.com/question/17491501

3 0
2 years ago
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