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3 years ago

In a, nuclear energy is changed to _____ energy which helps eventually generate electricity

Chemistry

1 answer:

Verdich [7]3 years ago

8 0

electrical.

This heat energy, already being steam, will be converted into mechanical energy by a turbine, and in the end this mechanical energy will be converted into electrical energy by a generator. The nuclear reactor is responsible for rising and handling this atomic fission that generates a lot of heat.

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I find that there are 500 atoms of U-235 and 1500 atoms of Pb-207. If we assume the mineral contained only parent and no daughte

swat32

Explanation:

From the question it can be infered that initially only parent atoms were present in the rock and no daughter atom. So, initially there was only uranium atom and no lead atom. So, in total there were 500+1500= 2000 uranium atom. And no lead tom was there.

3 0

4 years ago

Consider the rate law below.

Inessa [10]

If you double the concentration of A, the rate is doubled. If you doubled the concentration of B, since the rate law has B^2, the rate is multiplied by 4. If you double both A & B's concentrations, then the rate would be multiplied by 2*4 = 8, which is the last option.

3 0

4 years ago

Read 2 more answers

A 5.325g sample of methyl benzoate, a compound in perfumes , was found to contain 3.758 g of carbon, 0.316 g of hydrogen, and 1.

Alexxandr [17]

Answer: The empirical and molecular formula of the compound is $C_4H_4O$ and $C_8H_8O_2$ respectively

Explanation:

We are given:

Mass of C = 3.758 g

Mass of H = 0.316 g

Mass of O = 1.251 g

To formulate the empirical formula, we need to follow some steps:

Step 1: Converting the given masses into moles.

Moles of Carbon = $\frac{\text{Given mass of Carbon}}{\text{Molar mass of Carbon}}=\frac{3.758g}{12g/mole}=0.313moles$

Moles of Hydrogen = $\frac{\text{Given mass of Hydrogen}}{\text{Molar mass of Hydrogen}}=\frac{0.316g}{1g/mole}=0.316moles$

Moles of Oxygen = $\frac{\text{Given mass of oxygen}}{\text{Molar mass of oxygen}}=\frac{1.251g}{16g/mole}=0.078moles$

Step 2: Calculating the mole ratio of the given elements.

For the mole ratio, we divide each value of the moles by the smallest number of moles calculated which is 0.078 moles.

For Carbon = $\frac{0.313}{0.078}=4.01\approx 4$

For Hydrogen = $\frac{0.316}{0.078}=4.05\approx 4$

For Oxygen = $\frac{0.078}{0.078}=1$

Step 3: Taking the mole ratio as their subscripts.

The ratio of C : H : O = 4 : 4 : 1

The empirical formula for the given compound is $C_4H_4O$

For determining the molecular formula, we need to determine the valency which is multiplied by each element to get the molecular formula.

The equation used to calculate the valency is:

$n=\frac{\text{Molecular mass}}{\text{Empirical mass}}$

We are given:

Mass of molecular formula = 130 g/mol

Mass of empirical formula = 68 g/mol

Putting values in above equation, we get:

$n=\frac{130g/mol}{68g/mol}=1.9\approx 2$

Multiplying this valency by the subscript of every element of empirical formula, we get:

$C_{(2\times 4)}H_{(2\times 4)}O_{(2\times 2)}=C_8H_8O_2$

Hence, the empirical and molecular formula of the compound is $C_4H_4O$ and $C_8H_8O_2$ respectively

4 0

3 years ago

Determine what product will be produced at the negative electrode for the

inna [77]

D koh because it is

4 0

3 years ago

Read 2 more answers

If the above two waveforms were sound waves, we would hear the ___________ wave louder. If the above two waveforms were light wa

larisa86 [58]

B) green, red

Explanation:

If the above two wave-forms were sound waves, we would hear the green wave louder.

If the above two wave-forms were light waves, we would see the red wave dimmer.

What determines the loudness of a sound wave?

A sound wave is a disturbance that transmits sound energy from one point to another in a series of rarefaction and compression.

The amplitude of a sound wave determines the loudness of sound.

Amplitude is the vertical displacement a wave undergoes from its rest point. We can see that the green wave-form has a large vertical displacement. This implies a louder sound would be hear.

When the amplitude of sound increases, it is heard more loudly because it is propagated with more intensity. This is why green wave is louder.

Why would red be dimmer?

Still using the same analogy as sound, a light wave is an electromagnetic wave or radiation. Light is a part of the electromagnetic spectrum which photoreceptors in the eye are highly sensitive to.

The more energetic the burst of light waves, the more brighter it is is picked by the receptors in the eye.

Bright light has more energy and photons in it.

The energy carried by light is proportional to the square of its amplitude. The more energy a light carries, the more photons it will have. This makes it have more brightness.

The red wave-form has a lower amplitude and will be dimmer to the eye.

learn more:

light waves brainly.com/question/8032392

Sound waves brainly.com/question/2845448

#learnwithBrainly

5 0

3 years ago

Read 2 more answers