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Lina20 [59]
3 years ago
9

The combination of water and CO2 molecules in the atmosphere account for approximately 155 W/m^2 in greenhouse heating.

Chemistry
1 answer:
lorasvet [3.4K]3 years ago
7 0

Answer:

the final temperature is T=305.63 K

Explanation:

using the Stephan-Boltzmann equation for black bodies

q = σ*(T⁴-T₀⁴)

where

q= heat flux = 155 W/m²+150 W/m² = 255 W/m²

σ= Stephan-Boltzmann constant = 5.67*10⁻⁸ W/m²K⁴

T= absolute temperature

T₀= absolute initial temperature = 255 K

solving for T

q = σ*(T⁴-T₀⁴)

T = (q/σ + T₀⁴)^(1/4)

replacing values

T = (q/σ + T₀⁴)^(1/4) = (255 W/m²/(5.67*10⁻⁸ W/m²K⁴) + (255 K)⁴)^(1/4) = 305.63 K

T=305.63 K

thus the final temperature is T=305.63 K

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Inorganic compounds which are found in the earth are called
saul85 [17]

Answer: The answer would be minerals. Synthetics are made by men, and shouldn't be found in the earth Vitamins are organic Cement is a mixture of an organic compounds and rarely found in nature.

6 0
3 years ago
which are correct formulas for ionic compounds? for those that are not correct, give the correct formula and justify your answer
skelet666 [1.2K]

Answer:

Ionic compounds have a metal and nonmetal.

Ionic compounds are made up of ions.

Explanation:

You did not provide any formulas for me to correct, but:

  • ionic compounds tend to have metals and nonmetals. (EX: NaCl)You can look at the periodic table to see which elements are metals and which are not.
  • ionic compounds are made up of ions. Ions are elements that have a charge (Like Cu^{2+} or  O^{-}). To have a correct ionic compound, make sure that the ions inside of it "cancel" each other out.

       EX: Na has a +1 charge. Cl has a -1 charge. When they are paired up,      they successfully cancel each other out (become neutral) and become the ionic compound NaCl.

The chart below shows you the charge of each element. Make sure the charge of the elements in an ionic compound "cancel" each other out.

The very last chart shows the metals and nonmetals

Chart 1:found in https://chem.libretexts.org/Courses/Oregon_Tech_PortlandMetro_Campus/OT_-_PDX_-_Metro%3A_General_Chemistry_I/03%3A_Nuclei_Ions_and_the_Periodic_Table/3.03%3A_Predicting_Charges_of_Ions

Chart 2: found in https://sciencenotes.org/metals-metalloids-nonmetals/

4 0
2 years ago
What is the molarity of a solution that contains 148g NaOH in 4.00 L solution? a 0.925 M b 0.0253 M c 0.459 M d 1.363 M
Anton [14]

Answer:

M = 0,925

Explanation:

n= mass/Molecular Weight

n = 148g / 39,99 (g/mol)

n= 3,7mol

M= n/Volumen(L)

M= 3,7mol/4L

M=0,925

8 0
3 years ago
Define measurment and its importance ​
suter [353]

Answer:

Explanation:

A measurement is the action of measuring something, or some amount of stuff. So it is important to measure certain things right, distance, time, and accuracy are all great things to measure. By measuring these things or in other words, by taking these measurements we can better understand the world around us.

6 0
2 years ago
Read 2 more answers
A chemist prepares a solution by dissolving 0.3 mole of CaCl2 in enough water to make 1000 mL of solution. What is the molar con
Rasek [7]
CaCl_{2} dissolves in water to give Ca^{2+} and Cl^{-} ions according to the following reaction:

CaCl_{2}  -------->  Ca^{2+}  + 2Cl^{-}

So, according to the above reaction, 1 mole of CaCl_{2} produce 2 moles of Cl^{-} ion,

So, 0.3 mole will give = 0.3 x 2 = 0.6 moles of  Cl^{-} ion

So, Molar concentration = \frac{0.6moles}{1L} = 0.6

Note: 1L = 1000mL 

7 0
3 years ago
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