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Misha Larkins [42]
3 years ago
12

As an alternative energy source, nuclear energy is more harmful to the environment than a coal-fired power plant because it prod

uces more mercury, air pollution, and carbon dioxide.
True
or
false
Chemistry
1 answer:
mel-nik [20]3 years ago
6 0

Answer:

False

Explanation:

It is coal-fired power plants that produce mercury, air pollution, and carbon dioxide.  

However, nuclear energy produces radioactive waste that must be stored for many years before it can be safely disposed.

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Look at picture please
Tom [10]

Answer:

Keep temperature constant and increase the pressure of the reaction. The rate of reaction increases.

Explanation:

First of all, the question is asking us to design an experiment to investigate the effect of pressure on the rate of reaction hence the pressure can not be held constant since it is the variable under investigation. This eliminates the first option.

Secondly, increasing the pressure of the reaction means that particles of the gas collide more frequently leading to a greater number of effective collisions and a consequent increase in the rate of reaction according to the collision theory.

Hence the answer above.

3 0
3 years ago
The sum of the number of proteins and neutrons in an atoms nucleus is its __________ ___________.
otez555 [7]

Answer:

Mass Number

Explanation:

In nuclear physics, the sum of the numbers of protons and neutrons present in the nucleus of an atom.

Please vote brainliest!

8 0
2 years ago
Read 2 more answers
1. the mass of one electron is
kupik [55]

Answer:

Mass of one electron is 9.1 × 10⁻³¹ kg

Mass of one proton is 1.673 × 10⁻²⁷ Kg

Mass of one neutron is 1.675 × 10⁻²⁷ Kg

 

<u>-TheUnknownScientist</u><u> 72</u>

4 0
2 years ago
What physical property difference enabled you to Seperate salt from water?
elena55 [62]
<span>The two techniques for separating an insoluble solid from a liquid are filtration and centrifuging. Filtration relies on the fact that the solid particles are smaller than the filter paper pores which allow the tiny molecules of liquid to pass through. With solids which dissolve in a liquid solvent, evaporation is commonly used to recover the solid and distillation is used to recover the solvent.</span>
5 0
3 years ago
Read 2 more answers
Element c has a strong emmission aound 450nm Does this emmission line reprosent a lower of higher emergy line at 627 nm?
Julli [10]

It  respresents the higher energy level than 627nm .

<h3>What is a emission line ? </h3>

Emission lines are the glowing hot gas emits lines of light whereas absorption line  refers to the tendency of  cool atmospheric gas to absorb the same line of light.Some lights produce dark band when the light passes through gas in the atmosphere . There are two line spectrum  and absorption.

 spectrum is an excitement of  electrons from lower to higher energy levels and when it comes back it releases energy in the terms of colourful lights .

It represents the  higher energy levels than 627nm because Energy is inversly proportional to wavelength .

to learn more about Emission lines click here

 brainly.com/question/28184999

#SPJ9

5 0
2 years ago
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