Which risk is associated with using nuclear fission to produce energy in a power plant?(1) depletion of hydrocarbons
(2) depletion of atmospheric oxygen
(3) exposure of workers to radiation
(4) exposure of workers to sulfur dioxide

Answers

Answer 1

Answer:

Answer:

The correct answer is option 3, that is, exposure of workers to radiation.

Explanation:

The process of nuclear fission takes place when uranium nuclei get bombarded with neutrons. This association dissociates the uranium nuclei apart, discharging radiation, heat, and more neutrons. The neutrons, which gets discharged results in a chain reaction as more uranium nuclei get bombarded, generating huge amounts of energy.

The massive concern related to a nuclear power accident is the negative influences of radiation on the human body. If an individual gets exposed to an acute dose of greater levels of radiation, the outcome would be radiation sickness. Radiation sickness is illustrated as illness resulting due to exposure to a large dose of radiation over a brief time duration. The signs may comprise nausea, skin burns, diarrhea, vomiting, general weakness, hair loss, and possibly death.

Answer 2

Answer: The risk that is associated with nuclear fission to produce energy in a power plant is 3) Exposure of workers to radiation.

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Sodium ion (Na+) and calcium ion (Ca2+) produce nearly the same color in a flame test (yellow and yellow-orange, respectively). Describe a way to differentiate between the two using a solution of Na2CO3 and write the correct balanced equation(s).
What Is a high-temperature physical state of matter in which atoms lose their electrons?

How do you find a Oxidation number

Answers

An oxidation number is the charge of the ion that would form if a covalent molecule was ionic. Oxidation numbers exist for covalent compounds, as ions are not formed.

The oxidation number is determined by the respective electronegativity of the atoms involved. A more electronegative element will always have a negative oxidation number. In the compound, all the oxidation numbers must add up to 0. Oxidation numbers of elements can vary between compunds.

A few rules to follow about oxidation numbers
Fluorine will always be -1
Oxygen will be -2 unless in a compound with fluorine
Hydrogen is usually +1

A few examples
HF (Hydrogen flouride) Oxy number of H= +1 and F = -1

H2O Oxy number of H = +1 and O= -2

NH3 Oxy of H= +1 and since there are 3 Hydrogens each with an oxidation number of +1 N must have an oxy number of -3 for the overall oxidation number of the compound to be 0.

H2SO4 Oxy number of H= +1 O=-2 When adding up the hydrogen and oxygen oxidation numbers ( 1 + 1 -2 - 2 -2 -2) we are left with -6 thus S must have an oxidation number of +6 for the overall number to be 0.

NO2 Oxidation number of O= -2 there are 2 oxygens leaving us with -4 thus N must have an Oxy number of +4 for the overall number to be 0.

What are the main characteristics for the definition of work?

Answers

Answer:

1-There Must be some displacement in the direction of force. 2-Angle between force and displacement is 0°.

How do you make liquid nitrogen icecream

Answers

Answer:

When it comes to ice cream, there are two big advantages to using liquid nitrogen over an electric machine or an old-timey hand-cranked job. First, it’s faster. Second, because it’s faster, there’s less likelihood that your cold confection will develop those pesky ice crystals that form when the ice cream freezes too slowly. To recap: better dessert, in your mouth sooner. What’s not to love?

Make mine the brainliest

Explanation:

Add any other liquid flavorings you might want. Put on your gloves and goggles. Pour a small amount of liquid nitrogen directly into the bowl with the ice cream ingredients. Continue to stir the ice cream, while slowly adding more liquid nitrogen.

Desvribe all lab equipment that can be used to accurately measure the volume of a liquid

Answers

The items you would use to measure the volume of a liquid are:

1.) Water
2.) Sink
3.) Beaker
4.) Cylinder
4.) Lab data
5.) Pencil/Pen

The average speed of a nitrogen molecule in air at 25 °C is 515 m/s. Convert this speed to miles per hour.

Answers

Answer:

1151.08miles/h

Explanation:

The given speed is 515 m/s

To convert meters per second to miles per hour:

Convert meters to miles: 1 m = 0.000621371 miles

Convert seconds to hours: 1 hr = 3600 s

Plug into the formula: miles/hr = (m/s) * (0.000621371 miles/m) * (3600 s/hr)

Plugging in the numbers: miles/hr = (515 m/s) * (0.000621371 miles/m) * (3600 s/hr) miles/hr = 1151.08miles/h

Therefore, the average speed of a nitrogen molecule in air at 25 °C converted to miles per hour is 1151.08miles/h.

Final answer:

To convert the average speed of a nitrogen molecule in air from meters per second to miles per hour, first convert the speed from meters per second to kilometers per hour, and then convert from kilometers per hour to miles per hour.

Explanation:

To convert the average speed of a nitrogen molecule in air from meters per second to miles per hour, we can use the conversion factor 1 mile = 1609.34 meters and 1 hour = 3600 seconds.

First, let's convert the speed from meters per second to kilometers per hour. We divide the speed in meters per second by 1000 to get the speed in kilometers per second and then multiply by 3600 to get the speed in kilometers per hour. This gives us a speed of approximately 1850 km/h.

Next, we convert the speed from kilometers per hour to miles per hour by dividing the speed in kilometers per hour by 1.60934. This gives us a speed of approximately 1150 mph.

Learn more about speed conversion here:

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Substance X has a specific heat capacity that is twice as large as Substance Y. If both samples ended up at the same change in temperature from the same amount of energy added, what is the relationship between the masses of the two samples? Explain.

Answers

Answer:

Substance X has a smaller mass

Explanation:

The relationship between the mass of the two samples is that the mass of X is smaller compared to the mass of Y.

The specific heat capacity is given as:

C = $(H)/(m x change in temperature)$

We can see that the higher the specific heat capacity the lesser the mass or simply put, the specific heat capacity of a body is inversely related to its mass.

If the amount of heat is constant i.e the same and the specific heat capacity of X is twice that of Y, then substance X has a smaller mass

Final answer:

The relationship between the masses of Substance X and Substance Y is mx : my = (cY) : (cX), which means that the ratio of their masses is equal to the inverse of the ratio of their specific heat capacities.

Explanation:

To determine the relationship between the masses of Substance X and Substance Y, we can use the equation Q = mcΔT, where Q represents the amount of heat added, m represents the mass of the substance, c represents the specific heat capacity, and ΔT represents the change in temperature.

Let's assume that the same amount of energy is added to both Substance X and Substance Y, resulting in the same change in temperature. Since Substance X has a specific heat capacity that is twice as large as Substance Y, we can set up the following equation:

mx(cX)ΔT = my(cY)ΔT

Canceling out ΔT on both sides of the equation, we get:

mx(cX) = my(cY)

To find the relationship between the masses, we can divide both sides of the equation by (cY) and simplify:

mx / my = (cY) / (cX)

Therefore, the relationship between the masses of Substance X and Substance Y is mx : my = (cY) : (cX), which means that the ratio of their masses is equal to the inverse of the ratio of their specific heat capacities.