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amid [387]
4 years ago
15

How do we use biomass as an energy source?

Chemistry
1 answer:
kherson [118]4 years ago
6 0
Biomass<span> contains stored </span>energy<span>. That's because plants absorb </span>energy<span> from the sun through the process of photosynthesis. When </span>biomass<span> is burned, this stored</span>energy<span> is released as heat. Burning </span>biomass<span> releases carbon dioxide

</span>
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The burning of propane gas can be represented as a balanced chemical reaction as follows: C3H8(g)+5O2(g)→3CO2(g)+4H2O(g) Calcula
Snezhnost [94]

Answer: 20L of H2O

Explanation:

C3H8 + 5O2 → 3CO2 + 4H2O

Recall 1mole of a gas contains 22.4L at stp

5moles of O2 contains = 5 x 22.4 = 112L

4moles of H2O contains = 4 x 22.4 = 89.6L

From the equation,

112L of O2 produced 89.6L H2O

There for 25L of O2 will produce XL of H2O i.e

XL of H2O = (25 x 89.6)/112 = 20L

6 0
3 years ago
Positive correlation means ________________. A. as one variable increases, the other variable decreases. B. variables become unr
Softa [21]

Answer:

D. As one variable increases, the other variable also increases

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3 years ago
This gas is found in the stratosphere where it helps protect us from UV radiation.
Luba_88 [7]

Answer: A

Explanation:

3 0
3 years ago
Help on my hw please
Reika [66]

Answer:

I think the answer is 2..

8 0
3 years ago
how many moles of sodium hydroxide (NaOH) are required to completely neutralize 2 mol of nitric acid (HNO3)
Brut [27]

2 moles of sodium hydroxide will be needed.

<h3><u>Explanation</u>:</h3>

Sodium hydroxide is a compound which is a base and nitric acid is the acid. The formula of the nitric acid is HNO3 and that of sodium hydroxide is NaOH.

The reaction between them are

NaOH +HNO3 =NaNO3 +H2O.

So here we can see that 1 mole of sodium hydroxide reacts with 1 mole of nitric acid to produce 1 mole of sodium nitrate and 1 mole of water.

So for 2 moles of nitric acid, 2 moles of sodium hydroxide will be required.

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3 years ago
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