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4 years ago

Which are risks of using nuclear power plants to generate electricity? Check all that apply.

2 answers:

4 0

Nuclear power plants produce highly toxic waste that breaks down very slowly. Nuclear power plants require mining to obtain fuel. Nuclear power plants rely on complex control systems that can fail due to human error.

liraira [26]4 years ago

4 0

Nuclear power plants produce highly toxic waste that breaks down very slowly. Nuclear power plants rely on complex control systems that can fail due to human error. Nuclear power plants require mining to obtain fuel.

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The element chlorine has two stable isotopes, chlorine-35 with a mass of 34.97 amu and chlorine-37 with a mass of 36.95 amu. Fro

sergejj [24]

Answer: One isotope has a percentage abundance of 75.75 % and the percentage abundance of another isotope is 24.24%.

Explanation:

We are given the two stable isotopes of chlorine with their respective masses. The average atomic mass of chlorine is also given.

Average atomic mass of chlorine = 35.45 amu.

Let us assume the fractional abundance of one isotope be 'x' and the fractional abundance for another isotope will be (1 - x) because the total fractional abundance is always equal to 1.

For Chlorine-35 isotope:

Fractional abundance = x

Mass = 34.97 amu

For Chlorine-37 isotope:

Fractional abundance = 1 - x

Mass = 36.95 amu

The formula for the calculation of average atomic mass is given by:

$\text{Average atomic mass }=\sum_{i=1}^n\text{(Atomic mass of an isotopes)}_i\times \text{(Fractional abundance})_i$

Putting values in above equation, we get:

$35.45=34.97(x)+36.95(1-x)\\\\35.45=34.97x+36.95-36.95\\\\-1.5=-1.98x\\\\x=\frac{-1.5}{-1.98}=0.7575$

$1-x=1-0.7575=0.2424$

Converting these two fractional abundances into percentage abundances by multiplying it with 100.

$x=0.7575\times 100=75.75\%\\\\1-x=0.2424\times 100=24.24\%$

Hence, one isotope has a percentage abundance of 75.75 % and the percentage abundance of another isotope is 24.24%.

7 0

3 years ago

Drag each tile to the correct box.

ElenaW [278]

Explanation:

Wind turbines generate electricity by following simple principle. Moving wind transfers energy to the to the blades of the wind mill which results in spinning of the blades. These blades are connected to internal shaft which also starts spinning. This spinning of shaft generates electricity which is further distributed to electrical substations to provide electricity to homes and businesses.

Step 1: Wind moves the blades of the turbine.

Step 2: Internal shaft spins

Step 3: Generator produces electricity

Step 4: Distribution lines carry electricity to substation

7 0

3 years ago

barium chloride (Ba(CIO3)2) breaks down to form barium chloride and oxygen. what is the balanced equation for this equation?

kompoz [17]

Answer:

Ba(ClO₃)₂ → BaCl₂ + 3 O₂

Explanation:

When exposed to heat, barium chlorate (Ba(ClO₃)₂ breaks down into an inorganic compound (Barium chloride - BaCl₂) and a molecule (Oxygen - O₂).

6 0

4 years ago

Flowers start as a sprout. Opinion Fact

Harman [31]

Answer:

FACT!!!!!!!!!!

Explanation:

4 0

3 years ago

Which scientist was the first to practice the scientific method we use today

bixtya [17]

Answer:

Aristotle

Explanation:

6 0

3 years ago