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3 years ago

What is one service humans receive from the environment AND one-way humans disrupt ecosystems? (These need to be related!)

Chemistry

1 answer:

Mashcka [7]3 years ago

5 0

Answer:

Land-use change: Humans may destroy natural landscapes as they mine resources and urbanize areas. This is detrimental, as it displaces residing species, reducing available habitats and food sources. ... This can negatively effect an ecosystem because the introduced species may outcompete native organisms and displace them.

Explanation:

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16.25 g of water at 54 C relaeases 402.7 J. What will be its final temp?

leonid [27]

Data:
Q = 402.7 J → releases → Q = - 402.7 J
m = 16.25 g
T initial = 54 ºC
adopting: c = 4.184J/g/°C
ΔT (T final - T initial) = ?

Solving:

Q = m*c*ΔT
-402.7 = 16.25*4.184*ΔT
-402.7 = 67.99*ΔT
$\Delta\:T = \frac{-402.7}{67.99}$
$\boxed{\Delta\:T \approx -5.92\:^0C}$

If: ΔT (T final - T initial) = ?
$-5.92^0 = T_{final} - 54^0$
$T_{final} = 54^0 - 5.92^0$
$\boxed{\boxed{T_{final} = 48.08\:^0C}}\end{array}}\qquad\quad\checkmark$

8 0

4 years ago

A system initially has a pressure of 12 atm and a volume of 9 L. What is the volume if the pressure is decreased to 6 atm?

Evgesh-ka [11]

Answer:

<h3>The answer is 18 L</h3>

Explanation:

In order to find the volume , we use the formula for Boyle's law which is

$P_1V_1 = P_2V_2$

where

P1 is the initial pressure

P2 is the final pressure

V1 is the initial volume

V2 is the final volume

Since we are finding the final volume

$V_2 = \frac{P_1V_1}{P_2} \\$

From the question

P1 = 12 atm

V1 = 9 L

P2 = 6 atm

We have

$V_2 = \frac{12 \times 9}{6} = \frac{108}{6} \\$

We have the final answer as

Hope this helps you

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3 years ago

David's body breaks down the sandwich into small enough molecules that can be absorbed through his intestinal lining and then in

viva [34]

break down food into smaller molecules the body can use; absorb molecules into blood and carry them throughout the body; eliminate wastes from the body

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3 years ago

Read 2 more answers

How many grams are in 3.396 moles of Al2S3?

Viefleur [7K]

The answer is choice C - there are approx. 509.93682609599995 grams in <span>Al2S3.</span>

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3 years ago

Read 2 more answers

If a concentrated solution of acetic acid is 99.5 % HC 2 H 3 O 2 and has a density of 1.05 g/mL, what is the concentration of th

Elena-2011 [213]

The concentration of this acid in moles per litre : 17.41