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3 years ago

Answer number 5 please if you say for point I will report you:)

Chemistry

1 answer:

wlad13 [49]3 years ago

4 0

Answer:

Explanation:

Lighting a fireworks the potential energy is converted to all forms of energy like light, heat and sound energy

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What is the heat of reaction H2 + 1/3N2 2/3NH3

laila [671]

Answer;

1/3N(g)+H(g)—>1/3NH3(g)

4 0

3 years ago

Determine which of the following contains the greatest mass of aluminium: 122 g of AlPO4, 266 g of A12C16, or 225 g of

pav-90 [236]

Answer : The $Al_2S_3$ contains the greatest mass of aluminum.

Explanation :

For $AlPO_4$ :

Molar mass of $AlPO_4$ = 122 g/mole

Molar mass of aluminium = 27 g/mole

As, 122 g of $AlPO_4$ contains 27 g of Al

So, 122 g of $AlPO_4$ contains $\frac{122}{122}\times 27=27g$ of Al

The mass of 'Al' in $AlPO_4$ is, 27 grams.

For $Al_2Cl_6$ :

Molar mass of $Al_2Cl_6$ = 266.7 g/mole

Molar mass of aluminium = 27 g/mole

As, 266.7 g of $Al_2Cl_6$ contains $2\times 27g$ of Al

So, 266 g of $Al_2Cl_6$ contains $\frac{266}{266.7}\times 2\times 27=54g$ of Al

The mass of 'Al' in $Al_2Cl_6$ is, 54 grams.

For $Al_2S_3$ :

Molar mass of $Al_2S_3$ = 150 g/mole

Molar mass of aluminium = 27 g/mole

As, 150 g of $Al_2S_3$ contains $2\times 27g$ of Al

So, 225 g of $Al_2S_3$ contains $\frac{225}{150}\times 2\times 27=81g$ of Al

The mass of 'Al' in $Al_2S_3$ is, 81 grams.

Hence, from this we conclude that $Al_2S_3$ contains the greatest mass of aluminum.

5 0

3 years ago

For a given mass the energy released is greatest for a reaction involving...

lukranit [14]

Nuclear fusion

Explanation:

For a given mass, the energy released is greatest for a reaction involving nuclear fusion.

Nuclear reactions generally release far much more energy compared to chemical energy because they involve the interaction between strong nuclear forces. There are two main types of nuclear reactions which are fusion and fission.

Nuclear fusion powers the sun and releases the greatest amount of energy.

In nuclear fusion, light atoms combines to form heavier ones.
The reaction degenerates into chain reaction in which huge amount of energy is released.
This reaction occurs in the core of sun and furnishes the solar system with radiant energy.

Learn more:

Transmutation brainly.com/question/3433940

#learnwithBrainly

5 0

4 years ago

Define: Trapping, Heading, Dribbling, and Throwing in I’ll give brainless

Vladimir79 [104]

Answer:

Trapping-bring (the ball) under control with the feet or other part of the body on receiving it.

Heading-shoot or pass (the ball) with the head.

Dribbling-take (the ball) forward past opponents with slight touches of the feet

This is if your talking about soccer

Explanation:

Throwing-propel (something) with force through the air by a movement of the arm and hand.

7 0

3 years ago

PLEASE HELP 100 POINTS

bonufazy [111]

Answer:

Gaseous nitrogen (78% in air) is fixed (by nitrogen fixing bacteria, and during lightning), then absorbed and assimilated by plants in the form of proteins, as well as nucleic acids. ... Nitrogen is returned to soil with excretory materials of animals and dead organisms.

Explanation:

Nitrates (or nitrites) are natural chemicals that are found in the soil, air and water. Nitrates are also used as a food additive to stop the growth of bacteria and to enhance the flavor and color of foodsAmmonium is also a general name for positively charged or protonated substituted amines and quaternary ammonium cations (NR + 4. ), where one or more hydrogen atoms are replaced by organic groups (indicated by R).an obsessive interest in or feeling about someone or something.

"our fixation with diet and fitness"

Denitrification: the loss or removal of nitrogen or nitrogen compounds specifically : reduction of nitrates or nitrites commonly by bacteria (as in soil) that usually results in the escape of nitrogen into the air

3 0

3 years ago