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4 years ago

How is chemical balanced maintained?

Chemistry

2 answers:

spin [16.1K]4 years ago

5 0

1. Exercise more often
2. Consume more omega-3 fatty acids
3. Make sure your not vitamin D deficient

NikAS [45]4 years ago

4 0

Featured snippet from the web
Homeostasis also refers to the process in which an organism maintains balance of things such as body temperature, water levels and salt levels. Many chemical reactions happen in order maintain homeostasis. Hormones must be made by breaking other molecules. ... Muscles need to produce heat in order to warm the body.

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A three-step process for producing molten iron metal from Fe2O3 is: 3Fe2O3 + CO → 2Fe3O4 + CO2 Fe3O4 + CO → 3FeO + CO2 FeO + CO

miskamm [114]

Answer:

There is 100.4652 kg of iron produced from 390 kg of Fe2O3

Explanation:

Step 1: Given data

3Fe2O3 + CO → 2Fe3O4 + CO2

Fe3O4 + CO → 3FeO + CO2

FeO + CO → Fe + CO2

Mass of Fe2O3 = 390 kg = 390000 grams

Molar mass of Fe2O3 = 159.69 g/moles

Step 2: Calculate moles of Fe2O3

Moles of Fe2O3 = mass of Fe2O3 / Molar mass of Fe2O3

Moles of Fe2O3 = 390000 grams / 159.69 g/moles = 2442.2 moles

Step 3: Calculate expected moles of Fe3O4

In the first equation, for 3 moles of Fe2O3 consumed ,we get 2 moles of Fe3O4. The mole ratio is 3:2

This means if we consume 2442.2 moles of Fe2O3, there will be produced 2/3 * 2442.2 = 1628.2 moles of Fe3O4

Since the yield for the step is only 84.6 %

This will be 0.846 * 1628.2 = 1377.4 moles of Fe3O4

Step 4: Calculate expected moles of FeO

In the second equation, for 1 mole of Fe3O4 consumed, there is produced 3 moles of FeO

This means for 1377.4 moles of Fe3O4 consumed, there is 3*1377.4 = 4132.2 moles of FeO produced

Since the yield for the step is only 50.8%

This will be 0.508 * 4132.2 = 2099.2 moles of FeO

Step 5: Calculate expected moles of Fe

In the third equation, for 1 mole of FeO consumed, there is produced 1 mole of Fe.

This means for 2099.2 moles of FeO consumed, there is also 2099.2 moles of Fe produced

Since the yield is only 85.7%

This will be 0.857 * 2099.2 = 1799 moles of Fe

Step 6: Calculate mass of Fe

Mass of Fe = moles of Fe * Molar mass of Fe

Mass of Fe = 1799 moles of Fe * 55.845 g/moles = 100465.2 grams = 100.4652 kg of Fe

There is 100.4652 kg of iron produced from 390 kg of Fe2O3

6 0

4 years ago

How many molecules are in 2.5 mol of NaCl?

Vlada [557]

Answer:

1.51 x 10²⁴molecules

Explanation:

Given parameters:

Number of moles of NaCl = 2.5moles

Unknown:

Number of molecules = ?

Solution:

The number of molecules that can be found in a given mole is given as the Avogadro's constant;

1 mole of substance = 6.02 x 10²³ molecules

2.5 mole of NaCl = 2.5 x 6.02 x 10²³ molecules

= 1.51 x 10²⁴molecules

6 0

3 years ago

A teacher wants to preform a class room demonstration that illustrates both chemical and physical changes. which would be the be

sp2606 [1]

Answer:

D) burning a candle

Explanation

When burning a candle no new substance is form.

We have both physical and chemical change occuring.

Physical part: Melting of the solid wax and evaporation of the liquid forms the physical change.

Chemical part: burning of the wax vapour forms the chemical change.

Explanation:

8 0

3 years ago

Which of the following affect the discharge of ions in electrolysis

dolphi86 [110]

Answer:

Discharge of ions during electrolysis is affected by, current apllied, the time of electrolysis, electrode type, posiiton of metal in electrochemical.

Explanation:

6 0

3 years ago

Read 2 more answers

A liquid that occupies a

Rudik [331]

Answer:

Explanation:

You are looking for kg / L

3.188 kg / 3.23 L = .987 kg/L

5 0

2 years ago