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RoseWind [281]
4 years ago
5

`You have to be careful about pouring drano down your pipes since it is mainly hydrochloric acid--you can't do it if they are ma

de of aluminum because it will dissolve them! You can't acid clean your aluminum auto parts for the same reasons: 2 Al + 6 HCl → 2 AlCl3 + 3H2. If you were able to dissolve 10.0 mol of Al, how many many moles of hydrogen gas could you make? NOTE: All numbers located immediately after elemental symbols should be considered subscripts.
A. 3.00 moles
B. 6.00 moles
C. 1.50 moles
D. 15.0 moles
E. none of the above
Chemistry
1 answer:
notsponge [240]4 years ago
8 0

<u>Answer:</u> The number of moles of hydrogen gas that will be produced is 15.0 moles.

<u>Explanation:</u>

We are given:

Moles of aluminum needed to be dissolved = 10.0 moles

For the given chemical reaction:

2Al+6HCl\rightarrow 2AlCl_3+3H_2

By Stoichiometry of the reaction:

2 moles of aluminium produces 3 moles of hydrogen gas

So, 10.0 moles of aluminium will produce = \frac{3}{2}\times 10.0=15.0mol of hydrogen gas

Hence, the number of moles of hydrogen gas that will be produced is 15.0 moles.

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What are the roles of a decomposer?
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Answer:

The roles of decomposers organisms are to degrade organic matter and contribute to the nutrition of the soil, which involves recycling the chemical elements needed by living organisms.

Explanation:

In nature, decomposers -such as bacteria and fungi- are heterotrophic organisms that require nourishment from organic matter in order to survive, being the last level of the food chains.

<u>The role of decomposers in an ecosystem can be summarized in two main functions</u>:

  1. <em>Degrading organic matter to convert complex substances into simple substances, which contributes to their own nutrition.</em>
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An example of this is the degradation of proteins by decomposers, providing nitrogen to the soil that will subsequently be absorbed by plants to synthesize their nutrients.

Learn more:

Decomposers in food chains brainly.com/question/2634998

4 0
3 years ago
Atoms of one element are converted to atoms of another element through
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Atoms of one element are converted to atoms of another element through transmutation or nuclear transmutation.
6 0
3 years ago
List 15 different things made of plastic in your house group them as thermoplastics and thermosetting plastics?
mars1129 [50]

Answer:

Things made of thermoplastics

1) Plastic chairs

2) Plastic table

3) Plastic cups and plates

4) Nylon bags

5) Plastic cabinet

6) PVC pipes-

7) Internal electronic component such as gears

8) Vehicle dashboard

Things made of Thermosetting plastics

1) Electrical insulation

2) Handles of electrical fittings

3) Plastic hoses

4) Electric switch covering

5) Coverings of electronic gadgets

6) Silicone in adhesives

7) Keyboard

Explanation:

A plastic polymer material that becomes soft upon heating and hard once again when cooled such that the material can be repeatedly or cyclically cooled and heated numerous times with its chemical and physical properties remaining constant is known as a thermoplastic.

A plastic, polymer or resin that is hardened from its soft or liquid state by curing irreversibly such that it cannot be made soft again without a change in its chemical properties is known as a thermosetting plastic.

8 0
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Which of the following compounds most readily undergoes solvolysis with methanol?
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C

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The leaving group must be a nucleophile too, but a less good one. In this case, the leaving group must be the Bromo, which leaves as the ion bromide (Br-). The substitution depends on the organization of the molecule. All the molecules are represented below.

If there are larges groups surround the leaving group, it will be more difficult for the reaction to happen because it has less space, do we say that exist a steric impediment.

As we can see in the structures below, the less steric impediment is on 3-Bromo-1-butene, because the pi bonds at the double bonds are extremely voluminous. Thus, the 3-Bromo-1-butene most readily undergoes the reaction with methanol.

7 0
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