People primarily use nuclear energy for creating electricity. Though, many are skeptical about the safety of nuclear energy, given that some also use it to make lethal atom bombs. What is the most persuasive argument in favor of nuclear energy's advantages over other alternatives to fossil fuels? (1 point)

Question

Nuclear energy serves as a valuable energy source because it can consistently generate electricity in a manner similar to conventional fossil fuel power plants.

Nuclear energy stands as a valuable energy source because the radioactive waste produced by a Onuclear reactor is comparatively less hazardous than the significant carbon emissions released by conventional fossil fuel power plants.

Nuclear energy proves to be a favorable electricity generation source because its carbon Oemissions are only 2% of what conventional power plants emit while burning fossil fuels for electricity production.

Nuclear energy proves to be an efficient energy source due to its cost-effectiveness, utilizing only 20% of uranium during power generation while yielding substantial energy output from a minimal uranium supply.

Answer 1

The most persuasive argument in favor of nuclear energy's advantages over other alternatives to fossil fuels is:

Nuclear energy proves to be a favorable electricity generation source because its carbon emissions are only 2% of what conventional power plants emit while burning fossil fuels for electricity production.

This argument highlights the environmental benefits of nuclear energy, particularly in relation to climate change and air quality, by emphasizing its significantly lower carbon emissions compared to fossil fuels.

Answer 2

Read the passage about Chernobyl.

Nuclear power plants employ fission to convert matter, typically uranium, into energy. This process offers numerous advantages, including the generation of substantial energy without causing air pollution. However, it also entails risks associated with radioisotopes. The devastating consequences of a nuclear catastrophe were evident in Chernobyl, Ukraine, in 1986, when a reactor explosion released significant radiation into the atmosphere. This radiation led to the demise of extensive areas, including the nearby Red Forest, and its effects extended across large portions of Asia and Europe. Subsequent to the Chernobyl incident, scientists have implemented measures to prevent such nuclear disasters.

Which statement most accurately characterizes a hazard linked to the utilization of radioisotopes in nuclear reactors?

(1 point)

Obtaining radioisotopes is exceptionally challenging, and they can only be sourced from the Sun.

Radioisotopes come at a high cost and do not yield the same energy output as coal and oil.

Should radiation escape from the reactors, it could inflict substantial harm upon living organisms.

In the event of radiation leakage from the reactors, it has the potential to foster the proliferation of numerous new life forms.

ME

Answer 3

The statement that most accurately characterizes a hazard linked to the utilization of radioisotopes in nuclear reactors is:

Should radiation escape from the reactors, it could inflict substantial harm upon living organisms.

This statement directly addresses the risk associated with radioisotope exposure and the potential for radiation to cause significant harm, aligning with the context of the Chernobyl disaster mentioned in the passage.

Answer 4

Ms. M's students are currently engaged in crafting experiments centered around the utilization of baking soda and vinegar. Within Group 1, they commence by introducing 25 grams of vinegar into a flask and depositing 5 grams of baking soda into a balloon, securing the balloon over the flask's opening, and subsequently merging the baking soda and vinegar. The flask's weight is monitored continuously throughout the experiment, and the accompanying image depicts the experimental setup conducted by Group 1.

Group 1's Experiment

balloon

baking soda in the balloon

vinegar

309

baking soda

309

gas

bubbles

Group 2 follows a comparable procedure but opts not to employ a balloon. Instead, they transfer an equivalent quantity of baking soda directly into the uncapped flask containing the vinegar. The provided image illustrates the experiment undertaken by Group 2.Group 2 follows a comparable procedure but opts not to employ a balloon. Instead, they transfer an equivalent quantity of baking soda directly into the uncapped flask containing the vinegar. The provided image illustrates the experiment undertaken by Group 2.

Group 2's Experiment

spoon

baking soda

baking soda

gas

vinegar

bubbles

259

30g

29

What would be the anticipated difference between the final mass in Group 2's experiment when compared to that of Group 1's experiment, and what accounts for this outcome?

(1 point)

The concluding mass in Group 2's experiment is expected to exceed that of Group 1's experiment due to the ingress of gas from the surrounding environment, augmenting the final mass.

The ultimate mass in Group 2's experiment is expected to equal the final mass in Group 1'sThe concluding mass in Group 2's experiment is anticipated to be lower than that in Group 1's

experiment, as gas is permitted to exit the flask, leading to a reduction in the final mass.

O The concluding mass in Group 2's experiment is projected to surpass the final mass in Group 1's experiment, as mass is invariably augmented during chemical reactions

Answer 5

The anticipated difference between the final mass in Group 2's experiment and that of Group 1's experiment is:

The concluding mass in Group 2's experiment is expected to be lower than that in Group 1's experiment, as gas is permitted to exit the flask, leading to a reduction in the final mass.

In Group 1, the balloon captures the gas produced during the reaction, keeping it contained and allowing for the mass to be measured without loss. In Group 2, without a balloon, the gas escapes into the environment, resulting in a lower final mass due to the loss of gas.

Answer 6

A characteristic feature of radioactive isotopes is their unique half-life, representing the durat

required for half of the isotope to decay. The table presents the half-lives of four isotopes.

LERSON 9

Nuclear Processes Unit Test

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Isotope

Half-Life (Years)

carbon-14 potassium-40

5.7 x 10

1.3 x 10

radon-222

1.0 x 10

thorium-232

1.4 x 1050

Using this data, which isotope would scientists avoid using for dating a fossil?

(1 point)

thorium-232

Oradon-222

carbon-14

potassium-40

Answer 7

Scientists would likely avoid using thorium-232 for dating a fossil.

This is because thorium-232 has an extremely long half-life of 1.4 x 10^50 years, making it unsuitable for dating relatively recent fossils, as it would take an impractically long time for a significant amount to decay. In contrast, isotopes like carbon-14, with a half-life of about 5,730 years, are more effective for dating fossils that are up to about 50,000 years old.