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Delicious77 [7]
3 years ago
14

50 POINTS - FAIRLY SIMPLE QUESTION............. How does calcium carbonate react with rain when the rain is in the air, while ca

lcium carbonate is on earth?
Chemistry
2 answers:
solniwko [45]3 years ago
8 0
The water will react with the calcium carbonate to create agricultural lime. This occurs because the water is not pure water and has calcium in it. The calcium ions from the rain water undergo a chemical reaction with the calcium carbonate's carbonate ions. 
mr Goodwill [35]3 years ago
4 0
Ut dissloves or sommat
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It is observed that the atoms of hydrogen in gas discharge tube emit radiations whose spectrum shows line characteristics (line
azamat

Answer: the line Spectra of hydrogen lies between the ultra-violet, visible light and infra-red of the electro magnetic spectrum

Explanation:

Electromagnetic radiation spans an wide range of wavelengths and frequencies. This range is called the electromagnetic spectrum. The electromagnetic spectrum is generally divided into seven regions, in order of decreasing wavelength and increasing energy and frequency. The 7 regions includes; radio waves, microwaves, infrared (IR), visible light, ultraviolet (UV), X-rays and gamma rays.

lower-energy radiation, such as radio waves, is expressed as frequency while microwaves, infrared, visible and UV light are usually expressed as wavelength and finally, higher-energy radiation such as X-rays and gamma rays, is expressed in terms of energy per photon.

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5 0
3 years ago
Please show some work For the reaction: NO(g) + 1/2 O2(g) → NO2(g) ΔH°rxn is -114.14 kJ/mol. Calculate ΔH°f of gaseous nitrogen
uranmaximum [27]

Answer:

148.04 kJ/mol

Explanation:

Let's consider the following thermochemical equation.

NO(g) + 1/2 O₂(g) → NO₂(g)      ΔH°rxn = -114.14 kJ/mol

We can find the standard enthalpy of formation (ΔH°f) of NO(g) using the following expression.

ΔH°rxn = 1 mol × ΔH°f(NO₂(g)) - 1 mol × ΔH°f(NO(g)) - 1/2 mol × ΔH°f(O₂(g))

ΔH°f(NO(g)) = 1 mol × ΔH°f(NO₂(g)) - ΔH°rxn - 1/2 mol × ΔH°f(O₂(g)) / 1 mol

ΔH°f(NO(g)) = 1 mol × 33.90 kJ/mol - (-114.14 kJ) - 1/2 mol × 0 kJ/mol / 1 mol

ΔH°f(NO(g)) = 148.04 kJ/mol

8 0
2 years ago
In stars, What atom is used with hygrogen atom in order to produce energy?
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In stars helium atoms are used with hydrogen atoms in order to produce energy.
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What do radio waves and microwaves have in common?
Anastasy [175]
1) A
2)A
3)C
4)A
That should be all of them. Hope this helps?
6 0
3 years ago
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