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TiliK225 [7]
3 years ago
7

What generally is the current level of deforestation in the United States

Chemistry
1 answer:
koban [17]3 years ago
3 0
The level is 1.59 of natural forest
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(c) O2 gas is transferred from a 3 L vessel containing oxygen at 4 atm to an evacuated 20 L vessel at a constant temperature of
Fudgin [204]

Answer:

After the transfer the pressure inside the 20 L vessel is 0.6 atm.

Explanation:

Considering O2 as an ideal gas, it is at an initial state (1) with V1 = 3L and P1 = 4 atm. And a final state (2) with V2 = 20L. The temperature remain constant at all the process, thus here applies the Boyle-Mariotte law. This law establishes that at a constant temperature an ideal gas the relationship between pressure and volume remain constant at all time:

P x V = k

Therefore, for this problem the step by step explanation is:

P_{1} xV_{1} = P_{2} xV_{2}

Clearing P2 and replacing

P_{2}= \frac{P_{1} xV_{1}}{V_{2} } = \frac{4atmx3L}{20L} = 0.6atm

7 0
3 years ago
How do you convert 134kj to Calories?
Sonja [21]
1 kilo joule = 0.239006 calories
134 kilo joule = 134 x 0.239006
                      = 32.026804 calories
5 0
3 years ago
Bandingkan kesan penyusuan susu ibu dengan penggunaan susu formula terhadap<br>perkembangan bayi.​
DedPeter [7]

Answer:

kau kje nk senang je kan . gi cari jawapan dlm buku la

Explanation:

aku x nk jwb . benda bole cri kt buku . ni la anak zmn skg ni . semua nk mudah

5 0
3 years ago
Which statement about carbon dioxide (CO2) is correct?
Zanzabum

Answer:

B

Explanation:

The carbon-oxygen double bond is polar.

However, carbon dioxide is a linear molecule. The two dipoles cancel out each other.

Thus, carbon dioxide is a non polar molecule with polar bond.

6 0
4 years ago
How is enthalpy used to predict whether a reaction is endothermic or exothermic?
Dahasolnce [82]
If the enthalpy change is negative, then the reaction is exothermic because heat energy was lost to the surroundings.

If the enthalpy change was positive, then the reaction was endothermic because heat energy was gained from the surroundings!

Hope this helps!! x
8 0
3 years ago
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