A volcano erupts sending lava down its side the lava destroys the forest below which sphere is being impacted negatively? And why PLEASE HELP ME I DONT HAVE MUCH TIME

Answers

Answer 1

Answer:

Answer:

Biosphere

Explanation:

This is because the biosphere is the category of life. This means that plants, animals, humans, and bacteria are all apart of the biosphere.

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Can someone tell me about kinetic, potential, and gravitational energy?

Answers

Answer:

the internet can teach you alot about all 3 things

Explanation:

Answer:

if you go on YT and search kinetic, potential, and gravitational energy their will be a bill nye vid that is very informational on the topic at hand!!!

Explanation:

hope this helps!!

When two intermediate chemical equations are combined, the same substance that appears in the same phase can be canceled out, provided thatA) it is a reactant in one intermediate reaction and a catalyst in the other reaction.
B) it is a product in one intermediate reaction and a catalyst in the other reaction.
C) it is a reactant in one intermediate reaction and a product in the other reaction.
D) it is a reactant in both of the intermediate reactions.

Answers

Answer: Option (C) is the correct option.

Explanation:

When two intermediate chemical equations are combined, the same substance that appears in the same phase can be canceled out, provided that it is a reactant in one intermediate reaction and a product in the other reaction.

For example,

$2Al(s) + 2KOH(aq) + 6H_(2)O\rightarrow 2KAl(OH)_(4)(aq)+ 3H_(2)(g)$ ....(1)

$2KAl(OH)_(4)(aq) + 4H_(2)SO_(4)(aq) + 6H_(2)O(l)\rightarrow 2KAl(SO_(4))_(2)(aq)+ 12H_(2)O(s)$ .........(2)

Cancelling the common species in both the equations as follows.

$2Al(s) + 2KOH(aq) + 6H_(2)O\rightarrow \not{2KAl(OH)_(4)(aq)}+ 3H_(2)(g)$

$\not{2KAl(OH)_(4)(aq)}+ 4H_(2)SO_(4)(aq) + 6H_(2)O(l)\rightarrow 2KAl(SO_(4))_(2)(aq)+ 12H_(2)O(s)$

Therefore, on addition we get the equation as follows.

$2Al(s)+ 2KOH(aq) + 4H_(2)SO_(4)(aq) + 22H_(2)O(l)\rightarrow 3H_(2)(g)+ 2KAl(SO_(4))_(2) + 12H_(2)O(s)$

The right answer for the question that is being asked and shown above is that: "C) it is a reactant in one intermediate reaction and a product in the other reaction." When two intermediate chemical equations are combined, the same substance that appears in the same phase can be canceled out, provided that it is a reactant in one intermediate reaction and a product in the other reaction.

Find the number of moles of argon in 452 g of argon

Answers

no. of moles = given mass/atomic mass

= 452/40

= 11.3.

Thus, there are 11.3 moles

nó of moles =given mass/molar mass
no of moles=452/39.9
therefore no of moles=11.3moles

Cohesion is the tendency for the same type of molecules to stick together. TRUE or FALSE

Answers

true

cohesion is the tendency for the same type of molecules to stick together!

To break a chemical bond, energy must be(1) absorbed (2) destroyed (3) produced (4) released

Answers

Answer: 1) absorbed

Explanation:

As a chemical bond is formed either by transfer of electrons or sharing of electrons, in order to break the forces of attraction among atoms, energy must be absorbed.

Energy is produced or released when a chemical bond is formed.

Energy is never destroyed, it converts from one form to another.

To break a chemical bond, energy must be $\boxed{\left( 1 \right){\text{ absorbed}}}$ .

Further explanation:

The attraction existing between atoms and molecules that facilitate the formation of various chemical compounds is termed as a chemical bond. It is formed either due to electron transference or by electron sharing between the bonded atoms. The chemical bond formed as a result of electron transfer from one atom to another is known as an ionic bond. The bond formed by the mutual sharing of electrons is called a covalent bond.

Endothermic process

The basic meaning of “endo” is “in”. These processes need energy from the surroundings, generally in the form of heat. Photosynthesis, evaporation of water, sublimation of dry ice, and melting of ice are some of the examples of endothermic processes.

Exothermic process

The general meaning of “exo” is “out”. These processes release energy from the system to the surroundings in the form of heat. Combustion of fuels, thermite reactions, nuclear reactions, and neutralization reactions are some examples of exothermic processes.

Since bond breaking is an endothermic reaction, energy must be supplied or absorbed from the surroundings to the system. Therefore, option (1) is the correct answer.

Learn more:

Which of these is an extensive property? brainly.com/question/1398514
Which of the phase changes is an exothermic change? brainly.com/question/1875234

Answer details:

Grade: High School

Chapter: Chemical reactions

Subject: Chemistry

Keywords: chemical bond, ionic bond, covalent bond, exothermic, endothermic, in, out, heat, photosynthesis, melting of ice, thermite reactions, neutralization reactions.

Ethyne, commonly known as acetylene, is used as a fuel in cutting torches for welding and metalworking. As the torch operates, the ethyne undergoes combustion, as represented by the following equation. 2 C2H2(g) + 5 O2(g) - -> 4 CO2(g) + 2 H2O(g) Calculate the mass of ethyne required to heat 1.50 kg of water 20.0ºC to 42.9ºC.