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3 years ago

Where does biomass comes from

1 answer:

7 0

Biomass is an organic material which has stored sunlight in the from of chemical energy biomass can fuel wood waste, manure, sugarcane, and other byproducts. biomass is a renewable energy source because the energy it comes from is the sun

i hope this helps

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Determine the oxidation number (oxidation state) of each element in CH 4 . C : H : Determine the oxidation number (oxidation sta

AleksandrR [38]

Answer:

1. In CH₄ molecule:

The oxidation number of H = (+ 1)

The oxidation number of C = (- 4)

2. In SO₂ molecule:

The oxidation number of O = (- 2)

the oxidation number of S = (+ 4)

3. In BF₃ molecule:

The oxidation number of F = (- 1)

the oxidation number of B = (+ 3)

Explanation:

Oxidation number represents the oxidation state of an element in a given chemical compound, which can be zero, negative or positive.

The overall charge on a given chemical molecule is equal to sum of the oxidation numbers of all the elements in that molecule.

Now, calculating the oxidation number-

1. In CH₄ molecule:

As we know, the oxidation number of H = (+ 1)

and the overall charge on the molecule = 0

Let the oxidation number of C be x

∴ x + (+ 1) × 4 = 0

⇒ x = (- 4)

Therefore, the oxidation number of C = (- 4)

2. In SO₂ molecule:

As we know, the oxidation number of O = (- 2)

and the overall charge on the molecule = 0

Let the oxidation number of S be x

∴ x + (- 2) × 2 = 0

⇒ x = (+ 4)

Therefore, the oxidation number of S = (+ 4)

3. In BF₃ molecule:

As we know, the oxidation number of F = (- 1)

and the overall charge on the molecule = 0

Let the oxidation number of B be x

∴ x + (- 1) × 3 = 0

⇒ x = (+ 3)

Therefore, the oxidation number of B = (+ 3)

3 0

3 years ago

A picture hanging on a wall has energy.

KonstantinChe [14]

It has potential energy.

8 0

3 years ago

Read 2 more answers

A Biology student wants to conduct a study of how much sunlight affects the length of sleep for mice. She sets up four cages wit

Temka [501]

The independent variable would be the amount of sunlight because that is what you are testing and the dependent variable would be the length of time the mice slept because it is what you are measuring. The constants would be everything else water, food, cage size, exercise wheel, and temperature because they stay the same.

6 0

3 years ago

Need Answer ASAP. Scientists design drugs alongside which type of engineers? Structural, civil, chemical, aerospace

g100num [7]

Answer:

Chemical I would assume.

Explanation:

This is because drugs have chemicals in them.

4 0

3 years ago

Read 2 more answers

Hemoglobin is the protein that transports oxygen in mammals. Different species of mammals have slightly different forms of hemog

Anna35 [415]

Answer;

= 64561.95 g/mole

Explanation;

mass of Fe in 100g = .346g

= .346 / 55.8452 moles

= 0.0061957 moles

These represent 4 moles of Fe in the molecule so moles of hemaglobin

= 0.0061957/4

= 0.0015489 moles

these are in 100 g so mass of 1 mole = 100 / 0.0015489

= 64561.95 g / mole

molar mass of hemoglobin = 64561.95 g/mole

6 0

4 years ago