Notice how CO2 changes over the course of one year. These regular ups and downs are likely caused by:

Question 4 options:



burning of fossil fuels



seasonal trends in tourism



forest fires



photosynthesis and respiration

a. Stellar Nebula:

The fusion process in a stellar nebula begins with the fusion of hydrogen atoms to form helium.

As the fusion continues, helium accumulates and eventually enough pressure and heat are generated to trigger the fusion of helium into heavier elements, such as carbon, nitrogen, and oxygen.

b. Average/Medium Sized Star:

In an average-sized star, hydrogen fusion continues and generates more heat and pressure, allowing for the fusion of heavier elements such as helium, carbon, and oxygen.

As the fusion process continues, heavier elements such as neon, magnesium, and silicon are produced, leading to the formation of heavier elements such as iron.

c. Red Giant:

In a red giant, the outer layers of the star expand and cool, exposing the core. The core then contracts and heats up, causing the fusion of helium into heavier elements such as carbon, nitrogen, and oxygen.

The fusion process in a red giant generates a large amount of energy and creates elements such as neon, magnesium, and silicon, as well as heavier elements.

d. Red Supergiant:

In a red supergiant, the core continues to contract and heat up, causing the fusion of heavier elements such as carbon, nitrogen, and oxygen.

The fusion process in a red supergiant generates a tremendous amount of energy and leads to the formation of elements such as neon, magnesium, and silicon, as well as even heavier elements.

The energy from the sun's nuclear fusion affects the Earth in several ways:

Read more about nuclear fusion here:

https://brainly.com/question/17870368

#SPJ1

The position is the strength of the magnetic field strongest is is the place where the magnetic field leaves, being point A.

When an electrically charged particle moves, it creates a magnetic field. According to the laws of electromagnetism, this magnetic field originates from the variation of the electric field strength.

In the region of the poles we see that the lines of magnetic induction are closer to each other, therefore, we consider that close to the poles the magnetic field is more intense.

See more about magentic field at brainly.com/question/14848188

#SPJ1

True.

The Mass Undergoes change only in ( Solid state to liquid state ) Ice Cube to Water .

Mass changes from mg to litre.

\(\huge\mathfrak\red{hope \: it \: helps}\)

Answer:

sentence 2, sentence 2, sentence 1

Explanation:

it was right for me on edge 2020

Answer:

1. Fred visited Nick after his graduation.

2. After Nick's graduation, Fred visited him.

1. Marie told Sarah that she makes great spaghetti.

2. Marie told Sarah, "You make great spaghetti."

1. John broke the fence with his bike.

2. John's bike hit a fence and it broke.

Answer:

129 units cubed

Explanation:

There are ten spaces between 120 and 130, so we can infer that each line represents a change in volume of 1 unit. The volume of the substance in the graduated cylinder looks like it's 1 under 130, so its volume is 129 units.

Hopefully this was helpful! :)

Carbon dioxide concentrations have grown significantly since the beginning of the industrial period, going from an annual average of 280 ppm in the late 1700s to 414 ppm in 2021 – a 48 percent increase.

The greenhouse gas equivalent concentration has been developed in order to total their impacts on the atmosphere. This is the CO2 concentration that would produce the same amount of radiative forcing as a combination of CO2 and other greenhouse gases over a 100-year time horizon.

CO2 accounts for over 76% of global greenhouse gas emissions. Methane, largely from agriculture, accounts for 16% of worldwide greenhouse gas emissions, while nitrous oxide, primarily from industry and agriculture, accounts for 6%.

learn more about greenhouse gas

https://brainly.com/question/12684997

#SPJ1

Answer:

asdd

Explanation:

adsade4223

The Henry's Law constant for argon if the partial pressure of argon in air is 0.0984 atm is 1.52 mole/L *atm.

Henry's regulation states that at a regular temperature, the amount of a given fuel that dissolves in a liquid is immediately proportional to the partial pressure of that gas in equilibrium with that liquid. Henry's regulation states that the solubility of a fuel in a liquid is immediately proportional to the pressure of the gas.

Pressure of argon =  p = 0.0984 atm

Molar solubility at 25°C, S = 0.150 mol/l

Calculating the Henry's Law constant,

     S =KP

       K =S/P

         0.150/0.0984

         = 1.52 mol/L atm

Hence the  Henry's Law constant (K) = = 1.52 mol/L atm

Learn more about Henry's Law here:-https://brainly.com/question/23204201

#SPJ4

Answer:

Matter exists as different substances that have observable different properties. ... Because matter exists as particles that are too small to see, matter is always conserved even if it seems to disappear. Measurements of a variety of observable properties can be used to identify particular materials.

Explanation:

Is it right.

Limonene is a naturally occurring compound found in citrus fruits that has the molecular formula C10H16. It is a hydrocarbon, meaning it consists only of carbon and hydrogen atoms.

This is a type of addition reaction in which a hydrogen halide (such as HCl or HBr) adds across a carbon-carbon double bond, creating a new single bond and converting the double bond into a halogenated alkane. There are two possible outcomes for hydrohalogenation: Markovnikov addition and anti-Markovnikov addition. In Markovnikov addition, the hydrogen halide adds to the carbon atom that already has more hydrogen atoms attached to it. In anti-Markovnikov addition, the hydrogen halide adds to the carbon atom that has fewer hydrogen atoms attached to it. These are the structures you would draw for the hydrohalogenation of Limonene for both Markovnikov and anti-Markovnikov addition.

To know more about compound visit :-

https://brainly.com/question/30037191

#SPJ11

The electrons in the shells would experience a decrease in energy.

We know that the electron shell in the outermost part of the atom is the shell that gets involved in the bonding of the atom. When the bonding takes place, there could be the sharing of electrons as in the covalent bond or the transfer of electrons as in the ionic bond.

In this case, we are dealing with the covalent bond hence there is the sharing of electrons and the shells that would be involved in this is the outermost shells.

By virtue of the sharing of the electrons and the combination of the shells, the energy of the outermost shell would become reduced as the electrons are now attracted to two nuclei rather than one of the hydrogen atoms in the compound.

Learn more about electron shell:https://brainly.com/question/491265

#SPJ1

Answer:

2 curies

Explanation:

This is actually pretty easy to explain.

The Radium-226 which is an isotope of the radium, have an activity of curie. This is basically used in radioactivity of certain elements.

As in both cases we have Radium -226 and we are only varying the mass of the Radium, then, we can just do a rule of 3 to calculate this:

1 g Ra-226 --------> 1 Curie

2 g Ra-226 -------->  X Curie

Solving for X:

X = 2 g * 1 Curie / 1 g

You can also see this by taking 2 grams of Ra per separate. On one side you have 1 g of Ra-226 and on the other side, you have another 1 g of Ra-226. Both have 1 Cury of activity. If you put both on the same side, you will have 1 Cury of 1 isotope plus 1 cury of the other isotope, final result? 2 curies.

Hope this helps

If more strong base is added until the equivalence point is reached then the equivalence point of the pH of this solution would be 7 if the total volume is 45.0 mL

If a strong acid is being titrated with a strong base, the equivalence point occurs when the moles of acid are exactly neutralized by the moles of base added. At the equivalence point, the resulting solution will be a neutral solution.

Assuming that the acid being titrated is completely dissociated and that there are no other factors affecting the pH, the pH of a neutral solution is 7.

Click the below link, to learn more about pH:

https://brainly.com/question/2288405

#SPJ11

Free energy change for transporting Ca2+ ions is calculated as follows:∆G = RT ln ([Ca2+]outside/[Ca2+]inside)∆G = 8.315 J/mol.K x 310 K x ln (25 mM/145 mM) = -15,400 J/mol.

Here, ∆G is negative, which implies that Ca2+ ions transport spontaneously from the cell to blood. This is because the free energy of the system decreases when Ca2+ ions move from high concentration to low concentration. Therefore, transporting Ca2+ ions is energetically favorable.

To know more about calculated visit:

https://brainly.com/question/30781060

#SPJ11

Two important scientific discoveries related to cell theory that were mentioned in the video are Robert Hooke's discovery of cells and Antonie van Leeuwenhoek's discovery of single-celled organisms.

1. Robert Hooke's discovery of cells: In 1665, Robert Hooke observed thin slices of cork under a microscope and noticed small compartments that he named "cells" due to their resemblance to the cells in a monastery. This discovery was important because it provided the first evidence that living organisms were composed of individual units or cells.

2. Antonie van Leeuwenhoek's discovery of single-celled organisms: In the late 1600s, Antonie van Leeuwenhoek used a microscope to observe a variety of samples, including water, blood, and even his own saliva. He discovered tiny, single-celled organisms that he called "animalcules." This discovery was significant because it showed that living organisms could exist as single cells, which supported the idea that cells were the basic building blocks of life.

These two discoveries were related to one another because they both contributed to the development of cell theory, which states that all living organisms are composed of cells and that cells are the basic unit of life. Hooke's discovery of cells provided the initial evidence for this theory, while van Leeuwenhoek's discovery of single-celled organisms supported the idea that cells could exist independently as functional units of life. Together, these discoveries helped to establish the concept of cell theory as we know it today, which has been further refined and expanded upon by subsequent scientific research.

Learn more about discoveries at: https://brainly.com/question/21988699

#SPJ11

The liquid dispensed from a burette is called Titrant.

When performing titrations, the liquid dispensed from a burette is known as the titrant, which is a solution of a known concentration used to react with a solution of unknown concentration. A burette is used in analytical chemistry to measure the volume of a liquid and to dispense measured quantities of a reagent. In acid-base titrations, the titrant is typically an acid or a base, while in redox titrations, the titrant is an oxidizing or reducing agent.

The liquid dispensed from a burette is added to the analyte solution until the reaction is complete and the endpoint is reached, indicating that the correct amount of titrant has been added to react with the analyte. The titrant is used to determine the unknown concentration of the analyte. In analytical chemistry, titrations are a common laboratory technique used to determine the concentration of a solution.

to know more about titration visit:

https://brainly.com/question/31483031

#SPJ11

CuO is the proper symbol for copper II oxide. Both the copper and the oxygen in the combination have valences of 2.

A compound's chemical formula serves as a representation of its chemical make-up. The components that make up a compound's molecules as well as the ratio in which their atoms join to produce those molecules are revealed by the chemical formula.

Both copper I oxide and copper II oxide cannot be represented by the formula CuO.

An ionic compound's formula takes into account the metal cation's valency and oxidation state, which are typically represented by a Roman numeral in the compound's name.

Cu2O is a more accurate depiction of the complex copper I oxide. This demonstrates that copper has a valency of 1 in the combination and oxygen has a valency of 2.

CuO is the proper symbol for copper II oxide. Both the copper and the oxygen in the combination have valences of 2.

To learn more about compound's formula refer to:

https://brainly.com/question/13058832

#SPJ4

Answer:

B - ide

Explanation:

Answer:

D hope this helps

Explanation:

Answer:

d. what will happen to the freezing point of the water if salt is added?

Answer:

if its 5X 10^3 mm=5m and if its 5X 10^-3 mm=5X 10^-6m

Explanation:

we know,

1m= 1000mm

as given 5X 10^3 mm we have to convert to meter

now  5X 10^3 mm= 5X 10^3/1000=5m

but if its  5X 10^-3 mm= 5X 10^-3/1000= 5X 10^-6m

thank u,

Answer:

36 hydrogen atoms in 3 molecules of glucose

Explanation:

The formula for one molecule of glucose is C₆H₁₂O₆

There are 12 hydrogen atoms in one molecule so in three molecules there would be 36

Answer:

3.33 tanques de O₂

Explanation:

Basados en la reacción:

2C₂H₂(g) + 5O₂(g) → 4CO₂(g) + 2H₂O(g)

2 moles de acetileno reaccionan con 5 moles de oxígeno produciendo 4 moles de dióxido de carbono y 2 moles de agua

La ley de Avogadro dice que el volumen de un gas bajo temperatura y presión constantes es proporcional a las moles de este gas. Así, como 2 moles de acetileno reaccionan con 5 moles de oxígeno, los litros de O₂ necesarios para quemar 9340L de acetileno son:

9340 L C₂H₂ × (5 moles O₂ / 2 moles C₂H₂) = 23350L de O₂

Si un tanque contiene 7x10³ L de O₂ serán necesarios:

23350L O₂ ₓ (1 tanque / 7x10³L) = 3.33 tanques de O₂

Explanation:

When an atom has an equal number of electrons and protons, it has an equal number of negative electric charges (the electrons) and positive electric charges (the protons). The total electric charge of the atom is therefore zero and the atom is said to be neutral. ... Chemically, we say that the atoms have formed bonds.

Answer:

hlo

how r u ?

hindi-kya hal ?

Science is the only way through which a country can develop and makes comforts for the people.

Science can solve the problems which maybe big problem or small problem but it can made that consequences which may cause the social, economical issues in the state or country. Scientists are the one influenced by science by the interest and need of society. That's why science is important to our society and to humans because it influences its development. Without science a country can not be developed because the science made our life very easy and make us comfortable.

So we can conclude that: Science is the only way through which a country can develop and makes comforts for the people.

Learn more about Economic Issues: https://brainly.com/question/1106682

#SPJ1