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4 years ago

What are the reactants in burning waste? What products are obtained from burning waste?

Chemistry

2 answers:

MA_775_DIABLO [31]4 years ago

6 0

Answer:

ash, smoke, carbon dioxide are obtained from burning waste

SIZIF [17.4K]4 years ago

6 0

Answer:

the reactants in burning waste are :- oxygen & the waste. ( combustion requires oxygen)

products:- ash, carbon dioxide and water vapor

Explanation:

Burning waste is an example of combustion but it is however not environment friendly as it leads to emission of large amount of carbon dioxide which pollutes the environment.

Burning of waste also produces a lot of solid residue and sometimes chemical waste which can be difficult to treat and dispose. The careless and untreated dumping of these residues or waste will lead to soil degradation and eventually lead to soil pollution.

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As you add electrons to an energy level, without adding more protons are there more or less repulsive

Dmitry_Shevchenko [17]

Answer:

There will be more repulsive force between the electrons.

Explanation:

Electrons contain negative charge.As a result the electron will repulse another adjacent negatively charged electron.

According to the given question addition of electrons to en energy level without adding more protons will increase the overall negative charge in the the energy level in which the electrons are added.

This ultimately leads to generate more repulsive force between the electrons.

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3 years ago

How to find effective nuclear charge

kiruha [24]

The effective nuclear charge is the net positive charge experienced by valence electrons

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4 years ago

Which set of atoms have 3 valence electrons?

ad-work [718]

Answer:

boron, aluminum, and gallium

Explanation:

They are in group 3A on the periodic table which means they have 3 valence electrons

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3 years ago

Question 3 of 25

Colt1911 [192]

The statement that describes a question that can guide the design of a scientific investigation could be about the necessity of a controlled variable. The correct answer is A.

<h3>What is a controlled variable?</h3>

It is a variable whose values are controlled by the researcher during the course of experimental investigations.

When designing an experiment, it is necessary to identify the different variables that would be involved for a successful investigation.

Variables can be independent, dependent, controlled, or constant. Identifying the necessary variables will help in designing the experiment.

More on variables can be found here: brainly.com/question/15740935

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2 years ago

#11.) When iron rusts in air, iron(III) oxide is produced. How many moles of oxygen react with 77.4 mol of iron in the rusting r

pshichka [43]

Answer 1) Option A) 58.05

In the given reaction of iron forming rust when reacts with the oxygen.

$4 Fe_{(s)} + 3O_{2}_{(g} ----> 2Fe_{2}O_{3}_{(s)}$

We can clearly see that, 4 moles of iron reacts with 3 moles of oxygen to give 2 moles of iron oxide.

So 4 Fe : 3 O and 77.4 moles of Fe : x moles of O

(3 X 77.4) / 4 = 58.05

So when we solve we get x as 58.05.

Hence the no. of moles of oxygen will be 58.

Answer 2) Option A) 10.03

The number of moles of carbon dioxide produced when 161.0 g of methane undergoes combustion will be 10.03

as we know the molar mass of methane is 16.043 g

As we can see in the reaction the mole ratio is 1:1;

1 mole of methane produces 1 mole of carbondioxide.

So, 161 g / 16.043 g = 10.03 moles of Carbon dioxide.

3 0

4 years ago