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Cloud [144]
3 years ago
14

How can you tell if the equations in this simulation are following the law of conservation of mass?

Chemistry
1 answer:
Iteru [2.4K]3 years ago
3 0

Answer:

can u mark me brainliest

Explanation:

Following the Law

Matter cannot be created or destroyed in chemical reactions. This is the law of conservation of mass. In every chemical reaction, the same mass of matter must end up in the products as started in the reactants. Balanced chemical equations show that mass is conserved in chemical reactions

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Acetaldehyde shows two UV bands, one with a lmax of 289 nm ( 5 12) and one with a lmax of 182 nm ( 5 10,000). Which is the n p*
UkoKoshka [18]

Answer:

The bands are due to:

λmax = 289 nm n→π* transition (E = 12)

λmax = 182 nm π→π* transition (E=10000)

Explanation:

The two types of acetaldehyde transition are as follows:

n→π* and π→π*

From the attached diagram we have to:

ΔEn→π* < ΔEπ→π*

ΔEα(1/λ)

Thus:

λn→π* > λπ→π*

In n→π* spin forbidden, the intensity is low. Thus, the molar extinction E for n→π* is very low.

The same way, for π→π* spin allowed the intensity is high. Thus, the molar extinction coefficient E for π→π* is high too.

The bands are due to:

λmax = 289 nm n→π* transition (E = 12)

λmax = 182 nm π→π* transition (E=10000)

5 0
3 years ago
Federico is lifting weights at the gym. As he starts exercising, his body responds by changing his heart rate and his respirator
soldi70 [24.7K]

During exercise , his body responds by an increase in the heart rate and his

respiratory rate.

<h3>What is Exercise?</h3>

Exercise refers to the activities which are done to improve the physical

fitness of an individual. Examples include:

  • Weight lifting
  • Running
  • Slipping etc.

The heart and respiratory rate are increased to ensure enough oxygen is

available to the cells of the body. This helps to ensure carbohydrate is

broken down to energy which is used by the body cells during the exercise

being performed.

Read more about Exercise here brainly.com/question/1365564

7 0
2 years ago
Calculate no of moles in 42g of carbon ?
kondaur [170]

Answer:

\huge\boxed{n = 3.5\ moles}

Explanation:

<u><em>Given :</em></u>

Mass in grams = m = 42 g

Molar Mass = M = 12

<u><em>Required:</em></u>

No. of moles = n = ?

<u><em>Formula :</em></u>

m = m / M

<u><em>Solution:</em></u>

n = 42 / 12

n = 3.5 moles

4 0
3 years ago
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Consider the reaction. At equilibrium, the concentrations are as follows. [NOCl] = 1.4 ´ 10–2 M [NO] = 1.2 ´ 10–3 M [Cl2] = 2.2
EastWind [94]
2NOCl ⇄ 2NO + Cl₂

K = [NO]²[Cl₂]/[NOCl]
K = [0,0012]²[0,0022]/[0,014]²
K = 0,000000003/0,000196
K = 0,000016163
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3 years ago
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jeffrey is on his skateboard and starts skating down a ramp. ten seconds later he is traveling at 20.0m/s calculate the accelera
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Velocity/time= acceleration
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3 years ago
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