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zhuklara [117]
3 years ago
5

80. Calculate AHıxn for the reaction: CaO(s) + CO2(g) → CaCO3().

Chemistry
1 answer:
ioda3 years ago
6 0
Still chill still chill still chill
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What is the answer plzzzzzz help ASAP
zhuklara [117]

The answer is C) reactants because a chemical reaction is the process in which atoms present in the starting substance rearrange to give new chemical combinations present in the substance formed by the reaction
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What is an orbital?
juin [17]

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Relating to orbit or orbits

Explanation:

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How did your estimated poputation size<br> compare with the actual population size
musickatia [10]

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Hope this helps

Explanation:

https://seagrant.whoi.edu/wp-content/uploads/2018/05/ESTIMATING-POPULATION-SIZE-1.pdf

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Determine the molar mass of a compound that has a density of 0.1633 g/L at STP.<br> (show work)
hodyreva [135]

Answer:

                     M.Mass  =  3.66 g/mol

Data Given:

                  M.Mass  =  M = ??

                  Density  =  d  =  0.1633 g/L

                  Temperature  =  T  =  273.15 K (Standard)

                  Pressure  =  P  =  1 atm (standard)

Solution:

              Let us suppose that the gas is an ideal gas. Therefore, we will apply Ideal Gas equation i.e.

                                             P V = n R T    ---- (1)

Also, we know that;

                       Moles  =  n  =  mass / M.Mass

Or,                                   n  =  m / M

Substituting n in Eq. 1.

                                             P V = m/M R T   --- (2)

Rearranging Eq.2 i.e.

                                             P M = m/V R T   --- (3)

As,

                     Mass / Volume = m/V = Density = d

So, Eq. 3 can be written as,

                                             P M = d R T

Solving for M.Mass i.e.

                                             M = d R T / P

Putting values,

M  =  0.1633 g/L × 0.08205 L.atm.K⁻¹.mol⁻¹ × 273.15 K / 1 atm

M  =  3.66 g/mol

6 0
3 years ago
Write five characteristics of good government?​
Oduvanchick [21]

Explanation:

giving equal opportunity,making good governance, maintaining peace and harmony among people, other try to write by your self

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