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stealth61 [152]
3 years ago
7

Which of the following refers to a situation in which the use of harmful gas emissions is balanced by the replenishing of renewa

ble energy sources?
carbon neutral
carbon stability
carbon footprint
carbon alignment
Chemistry
1 answer:
nignag [31]3 years ago
4 0

Answer:

carbon neutral

Explanation:

Carbon neutral is a term which signifies the implementation of policies by organizations, governments, businesses e.t.c to remove as much carbon from the environment as they add to it.

Carbon dioxide is one of the harmful gases produced during the combustion of fossil fuels. It's anomalous concentration in the earth's atmosphere can lead to devastating effects on our planets. To reduce the daily release of this greenhouse gas, an alternate use of renewable energy sources would provide a better solution towards our reliance on internal combustion engines that release carbon dioxide into the atmosphere. For example, solar farms can produce clean and renewable energy that would not release any carbon dioxide in the atmosphere.

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20 grams of ethane (C2H6) in a 15 L container has a pressure of 1.3 bar. What is the temperature, in oC
Zepler [3.9K]

Answer:

The temperature is 42.5 °C

Explanation:

We apply the Law of Ideal Gases to solve this:

P  .  V = n .  R . T

First, we convert the bar into atm, so we make a rule of three.

1.013 bar is 1 atm

1.3 bar is (1.3 . 1) /1.013 = 1.28 atm

1.28atm . 15L = n . 0.082 . T

We must convert the mass to moles ( mass / molar mass)

20 g / 30 g / mol = 0.666 moles

1.28atm . 15L = 0.666 mol . 0.082 . T

(1.28 atm . 15L) / (0.666 mol . 0.082) = T

315.5 K = T

As this is absolute temperature we must convert to °C

315.5 K - 273= 42.5 °C

3 0
3 years ago
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goldenfox [79]

Answer is:

either A, or D

Explanation:

4 0
3 years ago
An atom of 105In has a mass of 104.914558 amu. Calculate the binding energy in MeV per NUCLEON. Enter your answer with 3 signifi
joja [24]

Answer:

8.46

Explanation:

Atomic number : It is defined as the number of electrons or number of protons present in a neutral atom.

Also, atomic number of I = 549

Thus, the number of protons = 49

Mass number is the number of the entities present in the nucleus which is the equal to the sum of the number of protons and electrons.

Mass number = Number of protons + Number of neutrons

105 =  49 + Number of neutrons

Number of neutrons = 56

Mass of neutron = 1.008665 amu

Mass of proton = 1.007825 amu

Calculated mass = Number of protons*Mass of proton + Number of neutrons*Mass of neutron

Thus,

Calculated mass = (49*1.007825 + 56*1.008665) amu = 105.868665 amu

Mass defect = Δm = |105.868665 - 104.914558| amu = 0.954107 amu

The conversion of amu to MeV is shown below as:-

1 amu = 931.5 MeV

<u>So, Energy = 0.954107*931.5 MeV/atom = 888.750671 MeV/atom</u>

Also, 1 atom has 105 nucleons (Protons+neutrons)

<u>So, Energy = 888.750671 MeV/105nucleons = 8.46 MeV/nucleon</u>

<u>Answer:- 8.46</u>

8 0
3 years ago
75 ml of lemon juice are added to 50 ml of water. What is the percent by volume
natita [175]

Answer:

60%

Explanation:

Solute = the fruit juice  = 75mL

Solution= solute + solvent = 75+50 = 125mL

% of solute = solute/ solution  × 100 %

= 75/125  × 100 %

= 3/5 × 100 %

= 3 × 20 %

= 60%

I hope this was helpful, please rate as brainliest

8 0
3 years ago
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Give me a time table of how to revise my exam syllabus within 1 month
musickatia [10]

Explanation:

during the daytime just complete your lessons of biology, during the midday timechemistry or study it in evening, at night physics and just try to complete those chapters that are difficult for you and the easier one you could do at last simple and take Sunday as a day for revision...

Give 2hrs, 1hr each chapter...

4 0
3 years ago
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