A.What will sea levels be in 20 and 100 years compared to now????? B.What will the pH of the ocean be in 20 and 100 years compared to now????

Answer:

The SI base unit for amount of substance is the mole. 1 mole is equal to 1 moles NaCl, or 58.44277 grams.

Explanation:

I hope this helps!!

Answer:

260 grams sodium chlorate

Explanation:

moles to grams multiply by formula weight.

grams to moles divide by formula weight.

sodium chlorate => NaClO₃

=> formula wt = Na + Cl + 3O = [1(23) + 1(35) + 3(16)]g/mole = 106g/mole

∴ grams NaClO₃ = 2.45 mole x 106 g/mole = 259.7 grams ≈ 260 grams  

Answer:

253.5 K

Explanation:

Charles law equation, which is as follows is used to solve this question:

V1/T1 = V2/T2

Where;

V1 = initial volume (Litres)

V2 = final volume (Litres)

T1 = initial temperature (K)

T2 = final temperature (K)

According to the numerical information provided in this question:

V1 = 4.0 L

V2 = 3.0 L

T1 = 65°C = 65 + 273 = 338K

T2 = ?

Using V1/T1 = V2/T2

V1T2 = V2T1

T2 = V2 × T1/V1

T2 = 3 × 338/4

T2 = 1014/4

T2 = 253.5 K

Answer:

Clearing Land for a highway

Explanation:

The other examples are that of naturally occurring disasters and most life in that region have ways to regrow and repopulate in the case of those disasters. While a highway is a manmade object and interrupts the environment to the point that the new animals will not know how to deal with it. That is also why there are a lot of dead deer are found on the side of the road when a new highway is built.

Clearing land for a highway would most likely cause an ecosystem to have the lowest biodiversity and population sizes 3 years later. Therefore, option D is correct.

Biodiversity refers to the variety of life that can be found in a given area, including animals, plants, fungi, and even microorganisms such as bacteria. Each of these species and organisms collaborate in ecosystems to maintain balance and support life, much like an intricate web.

Every one of these exists in delicate balance and lives and works together in ecosystems to sustain and support life on Earth.

Typically, three levels of biodiversity are discussed: genetic diversity, species diversity, and ecosystem diversity. Genetic diversity refers to the various genes found in all plants, animals, fungi, and microorganisms. It can occur both within and between species.

Thus, option D is correct.

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Explanation:

require an emergency support immediately

Answer:

The following numbers are true for protons:

2.

5.

7.

Explanation:

I know for a fact that Protons have a positive charge

they are located inside of the nucleus

Go.ogle says that they aren't involved in bonding

And it says that it has a mass of one

I hope this helps chu <3

Answer:

A. 15

Explanation:

From the equation we see that 6 water particles are used to make 1 particle of the hexose.

That means, that to make 1 mole of the hexose, we need 6 moles of water (as a mole is an unit of count of particles).

To make 2.5moles of the hexose, we need 2.5*6 moles of water, so 15 moles of water.

Answer:

You can download answer here

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Explanation:

Answer:

0.0500

Explanation:

Answer:

Unbalanced

Explanation:

The reactants side says 2Na. This means there should also be 2Na on the product's side. However, there is only 1 Na there. Therefore, the chemical equations are unbalanced.

Hope this helps! If it did, please mark it as brainliest! It would help a lot! Thanks! :D

Explanation:

8. Qual das alternativas a seguir é um exemplo de fase?

O vapor de água

OTemperatura

O ponto triplo

O pressão

resposta o valor de água

Answer:

34.8 mL

Explanation:

First we convert 5.48 g of CuNO₃ into moles, using its molar mass:

Now we can calculate the volume of the solution, using the definition of molarity:

Finally we convert L into mL:

Answer:

[tex]1.26*10^2^4[/tex]

Explanation:

To find molecules, we will need to multiply the number of moles of carbon monoxide by Avogadro's number. Avogadro's number is [tex]6.022*10^2^3[/tex].

So the equation would look like this:

[tex](2.1) * (6.022*10^2^3) = 1.26 *10^2^4[/tex]

Answer: the answer would be B

Explanation:

27.0*C OPTION . GLAD IT HELPS

Answer:

0.468 m

Explanation:

From the question given above, the following data were obtained:

Mass of napthalalene (C₁₀H₈) = 30 g

Mass of toulene = 500 g

Molality =?

Next, we shall determine the number of mole in 30 g of C₁₀H₈. This can be obtained as follow:

Mass of C₁₀H₈ = 30 g

Molar mass of C₁₀H₈ = (12×10) + (8×1)

= 120 + 8

= 128 g/mol

Mole of C₁₀H₈ =?

Mole = mass / molar mass

Mole of C₁₀H₈ = 30 / 128

Mole of C₁₀H₈ = 0.234 mole

Next, we shall convert 500.0 g of toulene to Kg. This can be obtained as follow:

1000 g = 1 Kg

Therefore,

500 g = 500 g × 1 Kg / 1000 g

500 g = 0.5 Kg

Finally, we shall determine the molality of the solution. This can be obtained as follow:

Mole of solute (C₁₀H₈) = 0.234 mole

Mass of solvent (toulene) = 0.5 Kg

Molality =?

Molality = mole of solute / Kg of solvent

Molality = 0.234 / 0.5

Molality = 0.468 m

Answer:

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Answer:

representative elements

Answer: transition element

Explanation:

Answer:

A They are incorporated into molecules of sugar.

Explanation:

Photosynthesis is the metabolic process whereby sugar molecules are synthesized by plants in the presence of sunlight (light energy). For this process to occur, carbon dioxide (CO2) and water (H2O) are needed as reactants from external sources. Hence, the photosynthetic equation is as follows:

6CO2 + 6H2O → C6H12O6 + 6O2

According to this question, the carbon atoms in carbon dioxide are incorporated into sugar molecule (glucose). It takes 6 carbon atoms to produce one glucose molecule (C6H12O6). This process involves series of reaction in the light-independent stage of photosynthesis to occur.

Protons and neutrons are particles that make up the dense nucleus at the center of an atom. Protons have a positive electric charge, and neutrons have no electric charge (i.e., neutrons are electrically neutral).

Electrons are particles that are found surrounding the nucleus; electrons have a negative electric charge.

The magnitude of a proton's positive charge and an electron's negative charge are equal in magnitude. All they differ in is in their polarity.

So, an atom that has the same number of protons and electrons would be electrically neutral. An ion is an atom that has a non-neutral charge because of an imbalance between the number of protons and electrons. If there are more electrons than protons, there is a net negative charge, and this type of ion is called an anion; if there are fewer electrons than protons, there is a net positive charge, and this type of ion is called a cation.

In this case, we have an element (or, more precisely, an atom of an element) that has 35 protons, 36 electrons, and 45 neutrons. There is one more electron than there are protons. This is called an anion because there are fewer electrons compared to protons.

Considering the definition of ion, cation and anion, this is called an anion  because there are  more electrons compared to protons.

All atoms are composed of a central nucleus in which there are particles with a positive electric charge, the protons, around which other particles with a negative electric charge that are electrons move. Thus, the atom is electrically neutral, since the positive charge of the protons is compensated by the negative charge of the electrons.

On the other hand, an ion is a particle with an electrical charge obtained by adding or removing electrons from atoms or molecules.

An electron-deficient atom or molecule has a positive charge and is called a cation; On the other hand, when there are excess electrons, the ion has a negative charge and is called an anion.

In other words, if an atom, or atoms, does not have a balanced number of negatively charged electrons and positively charged protons, these species will be charged and are called ions.

A cation has more protons than electrons, giving it a net positive charge. For a cation to form, one or more electrons must be lost.

An anion has more electrons than protons, which gives it a net negative charge. For an anion to form, one or more electrons must be gained.

In this case, an element has 35 protons, 36 electrons, and 45 neutrons. This is called an anion  because there are  more electrons compared to protons.

Learn more:

Answer:

As food passes through the GI tract, it mixes with digestive juices, causing large molecules of food to break down into smaller molecules. The body then absorbs these smaller molecules through the walls of the small intestine into the bloodstream, which delivers them to the stomach

Answer:

Food contents that the animal or creature has swallowed goes into the stomach. The contents gets broken down. The energy from the contents will then go through the body.

Answer:

The theory that cells are the basic structural, functional, and organizational units of both single-celled and multicellular organisms; cells divide and pass on hereditary information; and energy flows within cells.

Explanation:

Radiation from alpha decay has the least energy.

Alpha decay is the name for the nuclear process that releases alpha particles. Two protons that were lost by the uranium atom are present in the alpha particle. Additionally, the two protons have a +2 charge. The particle's mass, or the sum of its protons and neutrons, is represented by the top number, 4, in this case. Alpha particles must also have two neutrons because they have two protons, making a total of four protons and neutrons. Two protons and two neutrons are the constant components of alpha particles.

A nuclear process known as "alpha decay" releases a particle made up of two protons and two neutrons when an unstable nucleus transforms to another element. The helium nucleus that is being ejected is known as an alpha particle.

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Answer:

C) Alpha decay

Explanation:

Alpha decay, beta decay, electromagnetic decay, Gamma decay

its least to greatest

The Light Is- Electric To Radiant

Car Battery- Chemical To Electric

Wind Thingy- Motion To Electric

Fan- Electric To Motion

Guitar- Electric To Sound

Hope This Helps!!

Answer:

4.52 grams of potassium chloride

Explanation:

First you need a balanced reaction equation K(s) + Cl₂ (g) --> 2 KCl(s). Since the chlorine gas is said to be in excess all of the potassium will be converted to form potassium chloride. Convert grams of potassium to moles of potassium with the periodic table, then you can convert moles of potassium to moles of potassium chloride with the balanced equation, finally convert moles of potassium chloride to grams of potassium chloride with the periodic table. Set up a dimensional analysis chart to help with conversions

(2.50 grams K) * (1 mole K)      * (2 mole KCl)   *   (35.45 grams KCl)

                       (39.09 grams K)      (1 mole K)             (1 mol KCl)

Which equals 4.52440778 grams, with sig figs it should be 4.52 grams of potassium chloride

Answer:

5 atoms of hydrogen will be found in the products

Explanation:

5 atoms of hydrogen will be found in the products becuase the law of conservation of mass states that mass is neither created nor destroyed in chemical reactions.

Answer:

15.1 mL of the HCl solution should be added

Explanation:

First off, let's use the definition of pH to find the desired number of H⁺ moles:

pH = -log[H⁺]

2.80 = -log[H⁺]

= [H⁺]

[H⁺] = 1.58 x 10⁻³ M

Then we use the definition of Molarity [C=n/V]:

[H⁺] = 1.58 x 10⁻³ M = molesH⁺ / 1.00 L

molesH⁺ =  1.58 x 10⁻³

So in the end there needs to be 1.58 x10⁻³ moles of H⁺ to achieve the desired pH.

Now let's calculate the added amounts of HCl and NaOH

mL HCl = 100 - 84 = 16 mL = 0.016 L

mL NaOH = 100 - 88 = 12 mL = 0.012 L

mol HCl = 0.016 L * 7.00x10⁻² M = 1.12x10⁻³ mol HCl = mol H⁺

mol HCl = 0.012 L * 5.00x10⁻² M = 6.0x10⁻⁴ mol NaOH = mol OH⁻

OH⁻ reacts with H⁺, producing water. So the moles of H⁺ remaining in the solution are:

1.12x10⁻³ - 6.0x10⁻⁴ = 5.2x10⁻⁴ mol H⁺

This means that the moles of H⁺ that we need to add are:

1.58x10⁻³ - 5.2x10⁻⁴ = 1.06x10⁻³ mol H⁺

Finally we calculate the required volume of HCl:

C = n/V

7.00 x10⁻² M = 1.06x10⁻³ mol H⁺ / V

V = 0.0151 L = 15.1 mL

Answer:

Explanation:El mol es una unidad conveniente de usar debido a la gran cantidad de átomos, moléculas u otros en cualquier sustancia.