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3 years ago

How are the Spectra of the gasses Different?

1 answer:

galina1969 [7]3 years ago

3 0

When gasses are heated they emit only certain wavelengths of light (an emission line spectrum). Different gasses emit different wavelengths. A cool object (gas or solid) can absorb some of the light passing through it. The temperature of an object is a measure of how much energy its atoms have.

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What is NaCI and what is KBr?

Rufina [12.5K]

NaCl= sodium chloride or salt
KBr= potassium bromide

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3 years ago

2.67 grams of butane (C4H10) is combusted in a bomb calorimeter. The temperature increases from 25.68 C to 36.2C. What is the ch

slavikrds [6]

The internal energy : 1310.43 kJ/mol

<h3>Further explanation</h3>

Internal energy (ΔE) can be formulated for Calorimeter :

$\tt \Delta E=C\times.\Delta t$

C= the heat capacity of the calorimeter

Δt=36.2-25.68=10.52°C

$\tt \Delta E=5.73 kJ/^oC\times 10.52^oC=60.2796~kJ$

mol butane(MW=58,12 g/mol)

$\tt \dfrac{2.67}{58,12 }=0.046$

the internal energy (ΔE) in KJ/mol

$\tt \dfrac{60.2796}{0.046}=1310.43~kJ/mol$

7 0

3 years ago

equal volumes of equimolar aqueous solutions of sodium sulfite and hydroiodic acid are mixed. what net ionic equation describes

erica [24]

Na₂S₂O₃(aq) + 2HCl(aq) → 2NaCl(aq) + H₂O(l) + SO₂(g) + S(s). A light yellow precipitate develops as the process continues.

<h3>What does the chemistry term "equation" mean?</h3>

Reaction equation are symbolic depictions of chemical reactions where the reactants and products are stated in relation to the following chemical formulae.

<h3>Equation and response are what?</h3>

What is an equations and a chemical reaction? In a chemical change, bonds between molecules of the reagent are destroyed and new bonds between molecules of the product are established to create a new substance. A chemical formula is nothing more than a statement of fact that represents how reactants generate products.

To know more about Equation visit:

brainly.com/question/28818520

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1 year ago

During photosynthesis, photocenters in chlorophyll capture energy from photons to excite electrons. The energized electrons are

marissa [1.9K]

One claim that supports one law of thermodynamics in photosynthesis is that energy is conserved, but the form of energy changes (Law 1).

<h3>What is photosynthesis?</h3>

Photosynthesis is a process done by plants and other organisms to obtain energy. This process implies a set of reactions that aim at converting light energy into chemical energy the organisms can use.

<h3>How is photosynthesis related to thermodynamics?</h3>

One way photosynthesis supports the laws of thermodynamics is through the first law that establishes energy is conserved, but the form of the energy can change.

This is because, in photosynthesis, the initial solar energy is transformed into chemical energy by storing the energy in carbon-hydrogen chemical bonds. This means the form of energy has changed but the energy is preserved.

Note: This question is incomplete because the graph is not given; due to this, I answered it based on general knowledge.

Learn more about photosynthesis in: brainly.com/question/1388366

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2 years ago

If 20 ml of a 0.5 M sodium hydroxide solution is necessary to neutralize 40 ml of an acid solution, what is the concentration of

leonid [27]

Answer: The concentration of the acid is 0.01 moles acid/0.040 L = 0.25 moles/L = 0.25 M

Explanation:

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3 years ago