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Lerok [7]
3 years ago
5

Ameadow food chain is shown.

Chemistry
2 answers:
GalinKa [24]3 years ago
7 0
The mouse is a Secondary consumer
Flauer [41]3 years ago
4 0

Answer:

the mouse is the secondary consumer

Explanation:

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A sample of vinegar was found to have an acetic acid concentration of 0.8846 m. What is the acetic acid % by mass? Assume the de
jenyasd209 [6]

Answer:

5.3%

Explanation:

Let the volume be 1 L

volume , V = 1 L

use:

number of mol,

n = Molarity * Volume

= 0.8846*1

= 0.8846 mol

Molar mass of CH3COOH,

MM = 2*MM(C) + 4*MM(H) + 2*MM(O)

= 2*12.01 + 4*1.008 + 2*16.0

= 60.052 g/mol

use:

mass of CH3COOH,

m = number of mol * molar mass

= 0.8846 mol * 60.05 g/mol

= 53.12 g

volume of solution = 1 L = 1000 mL

density of solution = 1.00 g/mL

Use:

mass of solution = density * volume

= 1.00 g/mL * 1000 mL

= 1000 g

Now use:

mass % of acetic acid = mass of acetic acid * 100 / mass of solution

= 53.12 * 100 / 1000

= 5.312 %

≅ 5.3%

3 0
3 years ago
Select the correct answer.
solong [7]
I think it’s A but I’m not sure, if it’s wrong I’m sorry
7 0
3 years ago
A 25.0g piece of aluminum sits in a room and cools. It loses 4300.0 J of heat. If the initial temperature of aluminum is 125.3°C
Vesna [10]

Answer:

-65.8C

Explanation:

8 0
3 years ago
What is the percent composition of Fluorine in CF5?
posledela
The answer is 100%
let me know if you want an explanation
6 0
3 years ago
Why do scientists think there is an undiscovered carbon sink somewhere?
dedylja [7]
The major carbon sources (reservoirs that release more carbon than absorbed) are: deforestation and fossil fuels

The major carbon sinks (reservoirs that absorb more carbon than released) are:
soil, oceans and plants.

When scientists calculate the amount of carbon dioxide is returned to the atmosphere vs the released the amount of carbon, a large amount is unaccounted for and the total does not add up. This is why scientists believe there is an undiscovered carbon sink somewhere.
6 0
3 years ago
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