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Katen [24]
2 years ago
9

Which of the following methods of making electricity results in dangerous radioactive waste

Chemistry
1 answer:
diamong [38]2 years ago
5 0

Answer:

B. Nuclear energy

Explanation:

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How are the terms molar mass and atomic mass different from one another
Ronch [10]

1.Molar mass is the mass of one mole per single element while atomic mass is the mass of an atom at rest or is the number of protons and neutrons.

2.Molar mass is measured in grams per mole while atomic mass is “unitless.”

3.Atomic mass is measured via mass spectrometry while molar mass is computed via atomic weight.

8 0
3 years ago
Conduction is the transfer of energy by the movement of currents. ture or false <br>​
Mandarinka [93]

conduction is the transfer of energy by the movement of currents(it is true)

8 0
2 years ago
Read 2 more answers
The radioisotope potassium-40 decays to argon-40 by positron emission with a half-life of 1.3 Ã 109 yr. A sample of moon rock wa
Aloiza [94]

Answer:

4.66 x 10^8 yr

Explanation:

The age of the rock can be calculated using the equation:

ln (N/N₀) = - kt    where N is the quantiy of radioisotope decayed and N₀ is the initially quantity present of the radioisotope; k is the decay constant, and t is the time.

Now from the data , we have 78 argon-40  atoms for every 22 potassium-40 atoms, we can deduce that originally we had 22 + 78 = 100 atoms of potassium-40 so this is our N₀.

When we look at the equation, we see that k is unknown, but we can calculate it from the half-life which is given by the equation:

k =  0.693/ t half-life = 0.693/ 1.3 x 10⁹ yr = 5.33 x 10⁻¹⁰ yr⁻¹

Now we are in position to answer the question.

ln ( 78/100 ) =  - (5.33 x 10⁻¹⁰ yr⁻¹ ) t

- 0.249 = - 5.33 x 10⁻¹⁰ yr⁻¹  t

0.249/ 5.33 x 10⁻¹⁰ yr⁻¹  = t

4.66 x 10^8 yr

8 0
3 years ago
Choose all the answers that apply. What are examples of how science has influenced technology?
Fudgin [204]

Answer:

A and B

Explanation:

A: The discovery of x- rays is a scientific discovery that led to X-ray machines which is technology.

B: Finding out that massive amounts of energy can be released by splitting the nucleus of an atom was the discovery and it led to nuclear power plants.

Satellites helping scientists map the earth doesn't really have an example of science. It just says that Satellites help scientists, and satellites are technology.

Robotic machines are also technology. Robots assisting doctors in surgery is technology helping people not science influencing technology.

So A and B would be the answers.

Hope this helps :)

5 0
3 years ago
Read 2 more answers
Will a sample float in water that has a mass of 64 g and a volume of 66 mL
grin007 [14]
<span>Things float in water if their density is less than the density of water so yes

</span>
8 0
3 years ago
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