which is the correct formula for the compound dinitrogen monoxide?

Maybe for sure its element number as five and two in for as Number of electrons in each level?  

During alpha decay, the process of alpha decay results in the atomic number decreasing by two units.

Alpha decay is a type of radioactive decay in which an atomic nucleus emits an alpha particle, which is a helium nucleus.

During alpha decay, the atomic number of the element decreases by two units and the mass number decreases by four units, because an alpha particle has two protons and two neutrons.

The decay of a radioactive element by alpha decay reduces the atomic number by two units and decreases the atomic mass by four units.

Because alpha particles are positively charged helium nuclei with two protons and two neutrons, they contain two fewer electrons than their parent nuclei. The loss of two electrons, or a positive charge of +2, results in a reduction of the atomic number by two units.

Thus, atomic number decreases by 2 units during an alpha decay.

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Answer:

John Dalton

John Dalton, an English chemist and meteorologist, is credited with the first modern atomic theory based on his experiments with atmospheric gases.

Answer:

Selective Breeding

Weeds are bad,

But why is this so?

Just like grass,

They too grow.

Weeds are disliked,

Like the drink that's spiked.

But why is this so?

Who's to say they shouldn't grow?

The weed is unwanted,

Like a murderer hunted.

But what crime did it commit?

Why should it not, be free to sit?

Thickly they may grow,

But grass even more so.

Who's to say they should not grow?

Why should their seed not be sow?

Weeds are bad,

But why is this so?

Just like grass,

They too grow.

If all things living, were for cared,

The land we own, for all shared.

The weed let live,

And life not carefully selected by- siv.

Selective breeding is unfair,

No better than plain warfare...

Explanation:

Scientific theories are always testable. A theory may be changed as a result of new observations.

A scientific theory is a set of laws, facts and hypotheses that have a complete vision of an aspect of reality.

It is a proposed explanation for a set of observable phenomena.

It allows in this way to organize and understand the observations and to be able to predict or provoke other future observations.

Theories can be modified or improved as more information is collected.

That is, theories can continue to be tested indefinitely, and eventually rejected, if the tests lead to it.  

Therefore, a scientific theory is testable by using a research method.

As mentioned, any theory can be tested or rejected as more information is collected.

This information to prove or reject theories are interpretations of observable facts, which generates new statements or allows to accept those already included in the theory.

Then, a theory may be changed as a result of new observations.

Finally, scientific theories are always testable. A theory may be changed as a result of new observations.

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Answer:

testable & new observations

Explanation:

Answer: if a biochemical reaction in our body is too fast or too slow it can endanger our life.

Explanation:in other example ,rate of reaction is obviously very important to the chemical industry. The rate of reaction dictates the rate of production our daily products.

Answer:  The correct answer is C. Yellow to orange.

When a base is added to a potassium dichromate (K2Cr2O7) solution, the color change occurs due to the reduction of the chromium(VI) ions (Cr2O7 2-) to chromium(III) ions (Cr3+). The original color of the potassium dichromate solution is yellow-orange.

As the base is added, the solution becomes more alkaline, and the chromium(VI) ions undergo reduction to form chromium(III) ions. This reduction reaction results in a color change from yellow to orange.

Therefore, the correct answer is C. Yellow to orange.

Explanation:

Answer:

I think 11.1 degrees Celsuis

Explanation:

Let me know if i'm right coz im not too sure.

A buffer solution is a type of solution that resists changes in pH when small amounts of acid or base are added to it. It contains a weak acid and its conjugate base or a weak base and its conjugate acid. The pH of a buffer solution is determined by the pKa of the weak acid and its conjugate base concentration.

In the given scenario, the acid is exactly half as concentrated as its conjugate base. This means that the buffer solution will have a pH equal to the pKa of the weak acid. The pKa of the weak acid is 6.1, so the pH of the buffer solution will be 6.1.
The buffer solution will be able to resist changes in pH even when small amounts of acid or base are added to it. If an acid is added to the buffer solution, it will react with the conjugate base to form more weak acid. This will prevent the pH from decreasing significantly. Similarly, if a base is added, it will react with the weak acid to form more conjugate base, preventing the pH from increasing significantly.
In conclusion, the pH of a buffer solution with an acid that is exactly half as concentrated as its conjugate base is equal to the pKa of the weak acid, which in this case is 6.1.

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Answer:

FeF3 is a molecule. In it there are 3 atoms of F and one of Fe.

Answer: CaCO3 + 2HNO3 -> Ca(NO3)2 + H2O + CO2

Explanation:

To calculate the number of grams per liter for a given concentration of sodium ions in millimoles per liter (mM), we need to convert millimoles to moles and then to grams.

The atomic mass of sodium (Na) is approximately 22.99 grams per mole (g/mol). Therefore, to convert from millimoles to moles, we divide the concentration in millimoles by 1000.

In this case, the concentration of sodium ions is given as 150 mM. Converting this to moles per liter, we have:

150 mM / 1000 = 0.15 moles per liter

Now, to calculate the number of grams per liter, we multiply the number of moles by the molar mass of sodium:

0.15 moles per liter * 22.99 g/mol = 3.4495 grams per liter

Therefore, the concentration of sodium ions in the extracellular fluid is approximately 3.4495 grams per liter.

It's worth noting that this calculation assumes that the molarity (concentration) of sodium ions in the extracellular fluid is solely due to sodium chloride (NaCl), which is the most common form of sodium found in biological systems. Other sodium salts or molecules could contribute to the overall molarity, but sodium chloride is the predominant contributor.

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The relationship between volume is inversely proportional. This means that when there are an increase in pressure of molecules that are moving, pushes the molecules closer together, reducing the volume. If the pressure is decreased, the gases are free to move about in a larger volume.

You can see in the graph that the behaviour is: the volume is increasing, so this causes that the pressure increase. The answer would be the third one: pressure increases

Explanation:

It belongs to the oxygen family, also called the chalcogens. It consists of the elements found in Group 16 of the periodic table and is considered among the main group elements, namely Oxygen (O), Sulfur (S), Selenium (Se), Tellurium (Te), Polonium (Po), and Livermorium (Lv). This is the answer!

Answer:

cold front, cold front, warm front, cold front, warm front, also low, low, high, low, high air presure

Explanation:

Answer:

0.05859091769326505 moles Mn203

Explanation:

Answer:

One mole of oxygen gas, which has the formula O2, has a mass of 32 g and contains 6.02 X 1023 molecules of oxygen but 12.04 X 1023 (2 X 6.02 X 1023) atoms because each molecule of oxygen contains two oxygen atoms.

Explanation:

Some of the most toxic organic compounds, widely used in plastics, pesticides, and solvents, are the dioxins.

The toxic organic compounds widely used in solvents are volatile organic compounds (VOCs) such as benzene, toluene, xylene, and chlorinated solvents like trichloroethylene (TCE) and perchloroethylene (PCE). These solvents can pose a risk to human health and the environment due to their potential for leaching into soil and groundwater, as well as their ability to contribute to air pollution.

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Answer:

= 2.23000 × 10-6

Explanation:

Answer:

It's used to make paper.

Explanation:

Plato answer.

Answer:

Diabetes is a disease that occurs when your blood glucose, also called blood sugar, is too high. Blood glucose is your main source of energy and comes from the food you eat. Insulin, a hormone made by the pancreas, helps glucose from food get into your cells to be used for energy. Sometimes your body doesn’t make enough—or any—insulin or doesn’t use insulin well. Glucose then stays in your blood and doesn’t reach your cells.

Over time, having too much glucose in your blood can cause health problems. Although diabetes has no cure, you can take steps to manage your diabetes and stay healthy.

Answer:

Diabetes is the condition in which the body does not properly process food for use as energy. Most of the food we eat is turned into glucose, or sugar, for our bodies to use for energy. The pancreas, an organ that lies near the stomach, makes a hormone called insulin to help glucose get into the cells of our bodies.

- CDC

Answer:

the mass is of potassium is 88.38 rounded to the nearest hunndred.

Explanation:

Answer:

Explanation:

Answer:

Quantity of green product = 18 grams

Explanation:

Given:

Quantity of blue reactant = 8 grams

Quantity of yellow reactant = 10 grams

Find:

Quantity of green product

Computation:

According to Law of conservation of mass

Quantity of product = Sum of Quantity of  reactants

Quantity of green product = Quantity of blue reactant + Quantity of yellow reactant

Quantity of green product = 8 + 10

Quantity of green product = 18 grams

A nephron is the basic functional unit of the kidney that removes waste and additional substances from the blood. It is a long, convoluted tube that extends from the Bowman's capsule to the collecting duct. The correct option in the given question is (a) Proximal convoluted tubule.

The function of the nephron is to filter blood and to create urine. The following are the different regions of a nephron:

Water is actively transported in the proximal convoluted tubule. In this region, water and solutes are reabsorbed from the tubular lumen back into the peritubular capillary network. Water is also passively reabsorbed in the descending limb of the nephron loop. Hence, a is the correct option.

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Water is actively transported in the proximal convoluted tubule. This statement is true regarding the transport of water and the region of the nephron.  Approximately 65 percent of the filtrate is reabsorbed in the proximal convoluted tubule. Therefore, the correct option among the given choices is (a) Proximal convoluted tubule.

A nephron is water actively transported. It is a part of the kidney, specifically the renal tubule, that helps in filtering blood, reabsorbing essential elements, and excreting the waste in the form of urine.

Regions of the nephron include the following:

Proximal convoluted tubule (PCT)

Loop of Henle

Distal convoluted tubule (DCT)

Collecting duct

In the proximal convoluted tubule, water is reabsorbed by osmosis. Na+ ions and other substances are reabsorbed actively, making the environment of the filtrate hypotonic to blood. As a result, water moves passively from the proximal convoluted tubule to the capillaries. Approximately 65 percent of the filtrate is reabsorbed in the proximal convoluted tubule. Therefore, the correct option among the given choices is (a) Proximal convoluted tubule.

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Answer:

In general, electrons can be shared between atoms (a molecular bond) or electrons can be completely removed from one atom and given to another (an ionic bond). ... Water is a molecule because it contains molecular bonds. Water is also a compound because it is made from more than one kind of element (oxygen and hydrogen).

Explanation:

Answer:

Scientists study Earth's interior by studying

seismic waves. Seismic waves are waves of energy that travel

through Earth.

Explanation:

Sound is not always an indicator of an exothermic reaction. While some exothermic reactions may produce sound, others may not.

However, certain exothermic reactions that produce a lot of heat can cause nearby air molecules to rapidly expand and create pressure waves, which we hear as a sound.

For example, combustion reactions that involve burning fuels such as gasoline, natural gas, or propane can produce a loud, explosive sound as the fuel rapidly oxidizes and releases a large amount of energy in the form of heat and light.

Additionally, some exothermic reactions can cause materials to break or shatter, producing a loud cracking or popping sound. For example, the reaction between baking soda and vinegar produces carbon dioxide gas, which can cause a balloon filled with the mixture to pop with a loud sound.

So while sound alone is not conclusive evidence of an exothermic reaction, it can be a possible indicator in certain cases where the reaction produces a significant amount of heat or causes physical changes in the surrounding materials.

Other factors such as changes in temperature, light emission, or gas production may also be used as evidence to confirm an exothermic reaction.

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