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2 years ago

Hurry please what will scientists do to solve invasive species? How will it problem solve? Will it be successful or effective?

Chemistry

1 answer:

gavmur [86]2 years ago

6 0

Answer:

scientists could import or encourage breeding of a natural predator of the invasive species. it will be successful although may be a problem over time as the predator may become invasive.

Explanation:

this will greatly lower the amount of the invasive species as they are being consumed by an introduced predator, although you do risk making the predator an invasive species over time.

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Need help ASAP!! Thank you..

Arada [10]

Answer:

1. Potential Energy

2. Kinetic Energy

3. Motion Energy

4. Electrical Energy

Explanation:

5 0

3 years ago

Read 2 more answers

Find an expression for the change in entropy when two blocks of the same substance of equal mass, one at the temperature Th and

Gre4nikov [31]

Explanation:

Relation between entropy change and specific heat is as follows.

$\Delta S = C_{p} log (\frac{T_{2}}{T_{1}})$

The given data is as follows.

mass = 500 g, $C_{p}$ = 24.4 J/mol K

$T_{h}$ = 500 K, $T_{c}$ = 250 K

Mass number of copper = 63.54 g /mol

Number of moles = $\frac{mass}{/text{\molar mass}}$

= $\frac{500}{63.54}$

= 7.86 moles

Now, equating the entropy change for both the substances as follows.

$7.86 \times 24.4 \times [T_{f} - 250]$ = $7.86 \times 24.4 \times [500 -T_{f}]$

$T_{f} - 250 = 500 - T_{f}$

$2T_{f}$ = 750

So, $T_{f}$ = $375^{o}C$

For the metal block A, change in entropy is as follows.

$\Delta S = C_{p} log (\frac{T_{2}}{T_{1}})$

= $24.4 log [\frac{375}{500}]$

= -3.04 J/ K mol

For the block B, change in entropy is as follows.

$\Delta S = C_{p} log (\frac{T_{2}}{T_{1}})$

= $24.4 log [\frac{375}{250}]$

= 4.296 J/Kmol

And, total entropy change will be as follows.

= 4.296 + (-3.04)

= 1.256 J/Kmol

Thus, we can conclude that change in entropy of block A is -3.04 J/ K mol and change in entropy of block B is 4.296 J/Kmol.

8 0

3 years ago

How to find an elements atomic weight

Tju [1.3M]

To calculate the average atomic mass, multiply the fraction by the mass number for each isotope, then add them together.

3 0

3 years ago

What are the signs of the enthalpy change (ΔH°) and the entropy change (ΔS°) for the condensation of CS2(g)?

VARVARA [1.3K]

Answer:

∆H is negative

∆S is negative

Explanation:

The condensation of CS2 implies a phase change from gaseous state to liquid state. The energy of the gaseous particles is greater than that of the liquid particles hence energy is given out when a substance changes from gaseous state to liquid state hence the process is exothermic and ∆H is negative.

Changing from gaseous state to liquid states leads to a decrease in entropy hence ∆S is negative. Liquid particles are more orderly than particles of a gas.

5 0

4 years ago

Using at least one complete sentence, identify what might be one problem with using nonrenewable resources?

horrorfan [7]

Non-renewable resources, such as coal, produce harmful gasses, such as carbon monoxide, polluting the air and decreasing air quality.

4 0

3 years ago