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Kitty [74]
3 years ago
5

The data were collected over five spring seasons. What is the difference between the number of frogs in the pond when the rainfa

ll was 5 cm and when the rainfall was 20 cm?
Please help​
Chemistry
1 answer:
Lunna [17]3 years ago
3 0

Answer: they like deep water

Explanation: they do

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a flask contains 2 gases. the first gas has a pressure of 0.76 atm and the second gas gas a pressure of 4,500 Pa. what is the to
Liula [17]

Answer:

The total pressure is 0,804 atm

Explanation:

We use Dalton's law according to which the sum of the partial pressures is equal to the total pressure of a gas mixture. We convert the pressure in Pascals to atmosphere (it can also be done in reverse):

101300Pa ----1 atm

4500Pa----x= (4500Pa x 1atm)/101300Pa= 0,044 atm

P total= p1 + p2= 0,76 atm + 0,044 atm=0,804 atm

4 0
3 years ago
Changing _________________ can significantly alter the area that could be affected by a chemical release.
Harman [31]
The answer is D, location, because you'd have moved spots that could be altered.
6 0
3 years ago
HELP PLEASE!! 20 POINTSS
Mrac [35]
The answer is 110., but round accordingly
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2 years ago
A certain gas is present in a 15.0 LL cylinder at 2.0 atmatm pressure. If the pressure is increased to 4.0 atmatm the volume of
Helga [31]

Explanation:

According to Boyle's law,  pressure of a gas is inversely proportional to its volume at constant temperature and moles.

Mathematically,       P = \frac{k}{V}

where,     k = proportionality constant

Also, formula for initial pressure and volume is as follows.

              P_{i} = \frac{k_{i}}{V_{i}}

or,           k_{i} = P_{i} \times V_{i}

                          = 2 atm \times 15 L

                          = 30 atm L

Now, we will calculate the value of k_{f} as follows.

             k_{f} = P_{f} \times V_{f}

                         = 4 atm \times 7.5 L

                         = 30 atm L

Hence, as k_{i} = k_{f} this means that it signifies that gas obeys boyle's law.

6 0
4 years ago
Which substance is acting as the Brønsted-Lowry acid in the following chemical reaction? NH4 + OH- yields NH3 + H2O
Ket [755]
The <span> the Brønsted-Lowry acid donates H⁻.
In this reaction Particle that  loose H⁺ is A. NH4⁺ ion.</span>
6 0
3 years ago
Read 2 more answers
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