2NaCl is a....
(Mulititple choice)
​

Answer:

"ite"

Explanation:

Se sabe que los elementos del grupo 16 de la tabla prioritaria muestran estados de oxidación o valencias de 2,4 y 6 respectivamente, dependiendo del compuesto formado.

Por ejemplo, el azufre forma los siguientes compuestos;

sulfato de sodio (el azufre tiene una valencia de 6)

Sulfito de sodio (el azufre tiene una valencia de 4)

Sulfuro de sodio (el azufre tiene una valencia de 2)

Por lo tanto, en compuestos en los que exhiben una valencia de 4, la terminación común es "ite"

Answer:

ite

Explanation:

Hope this helps

If we view a new moon tonight, 4 weeks will pass before we view a full moon. The sole natural satellite of Earth is the Moon.

The sole natural satellite of Earth is the Moon. With a diameter that is around one-fourth that of the Earth, it's the fifth biggest satellite inside the solar system as well as the largest and also most massive when compared to its parent planet. The Moon is larger than any other dwarf planets of a Solar System and belongs to a planetary-mass body with a distinct rocky body, rendering this a satellite planet according to geophysical interpretations of the term.

There isn't much of an atmosphere, hydrosphere, and magnetic field there. With a surface gravity of 0.1654 g, it has a gravity that is around one-sixth that of Earth. Jupiter's moon Io is the only satellite inside the Solar System that is documented to have a higher gravity and density. If we view a new moon tonight, 4 weeks will pass before we view a full moon.

Therefore,  if we view a new moon tonight, 4 weeks will pass before we view a full moon.

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Answer:

respiración

Explanation:

Answer:

[tex]4molNH_3[/tex]

Explanation:

Hello there!

In this case, according to the given information it will be firstly necessary to set up the chemical equation taking place:

[tex]N_2+3H_3\rightarrow 2NH_3[/tex]

We infer we need to calculate the moles of NH3 by using both of the moles of N2 and H2 at the beginning, in order to identify the limiting reactant:

[tex]n_{NH_3}=6molN_2*\frac{2molNH_3}{1molN_2}=12molNH_3\\\\ n_{NH_3}=6molH_2*\frac{2molNH_3}{3molH_2}=4molNH_3\\[/tex]

Thus, since hydrogen yields the fewest moles of ammonia, we conclude that we are just able to yield 4 moles of NH3.

Regards!

Answer:

Reflection is when light bounces off an object. If the surface is smooth and shiny, like glass, water or polished metal, the light will reflect at the same angle as it hit the surface. For a smooth surface, reflected light rays travel in the same direction.

Explanation:

Answer:

A

Explanation:

It's not moving so it would be going 0 meters per second

Answer:

I think its A

Explanation:

Answer:

amını sike bilirim tabi verirsen

Answer:

B. metalloids

Explanation:

The metalloids are found between metals and non-metals on the periodic table.

Metalloids have properties between those of metals and non-metals. Under certain prevalent conditions, they exhibit a set of properties.

Synthetic substances are those artificially made, they are not found on the periodic table.

Noble gases are found in the last group on the periodic table.

Radioactive substances are found in the lanthanide and actinide series.

Answer: Here

Explanation:

trapped and transient radiation, solar and galactic cosmic rays, which can profoundly damage spacecraft electronics are presented

Answer:

Environmental factors including trapped and transient radiation, solar and galactic cosmic rays, which can profoundly damage spacecraft electronics are presented. Some effects such as ionization and atomic displacement damages to semiconductors and single event phenomena are also briefly mentioned.

Explanation:

Answer: Mn3C is the corrects answer

Trust me :)

Answer:

Electrons are the smallest of the particles that make up an atom, and they carry a negative charge.

Answer:

Electrons are the smallest subatomic particles that make up an atom. They have a mass of 1/1836 amu's or 0 amu's (no mass) Electrons are located in the electron cloud and have a negative charge.

Explanation:

Hope that helps

Answer:A compound is a unique substance that forms when two or more elements combine chemically. A compound always has the same elements in the same proportions. The properties of compounds may be very different from the properties of the elements that form them. Some compounds form rigid frameworks called crystals.

Explanation:

Answer:

An element or compounds’ physical properties are far easier to detect. These properties are things that can be observed without changing the identity of the element or compound. These properties include color, smell, freezing point, boiling point, melting point, opacity, viscosity, and density.

Explanation:

Answer:

Tropical storm

Explanation:

The tropical storm have the most rainfall because tropical winds will increase in strength as temperatures rise. With the increase in temperature, the tropical storms have stronger winds which leads to produce higher rainfall. There is a direct relationship between temperature and amount of rainfall. As the temperature increases, the tropical storms have stronger winds which leads to more rainfall while on the other hand, decrease in temperature decrease the strength of the tropical storm's winds that leads to lower rainfall.

The temperature given shows that the storm that will be predicted is a tropical storm.

It should be noted that temperature means the degree of hotness or coldness in a body.

In this case, since the temperature of the areas surrounding Kochi before each storm was about 10°C and there was the same amount of water vapor in the air, the appropriate storm is a tropical storm.

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Answer:

Electrons are discharged by the positive ions on the skin surface.

Answer:

Electron loss is always associated with an increase in oxidation number- True

An exothermic reaction occurs when the energy required to break bonds in reactants is less than the energy released by bond formation in the products.  True

The concentrations of pure liquids and pure solids are never included in an equilibrium constant expression because such concentrations never change. True

Explanation:

Oxidation implies loss of electrons. When a specie looses electrons, its oxidation number increases. For instance; Fe(s) -----> Fe^2+(aq) + 2e implies an increase in oxidation number of Fe from 0 to +2.

In an exothermic reaction, the energy required to break the bonds in the reactants is less than the energy released when new bonds form in the products.

We do not include the concentrations of pure liquids and pure solids in the equilibrium constant expression because the concentration of these do not change significantly throughout the reaction.

Answer:

hey,the answer is d, 1:2

Answer: D

Explanation:

The equation shows that one mole of nitrogen reacted with three moles of hydrogen to produce two moles of ammonia.

Answer:

An acid because they donate H^+ ions

Explanation:

Let us look at the equation again;

H2SO3 + H2O « H3O+ + HSO3-

An acid donates hydrogen ion while a base accepts hydrogen ion. Hence, we have to look at which species that acted as hydrogen ion donors or acceptors.

We can clearly see that H2SO3 acted as a hydrogen ion donor while H2O acted as a hydrogen ion acceptor.

Thus, H2SO3  acted as an acid by donating hydrogen ions.

Answer:

5.875 g of Oxygen

Explanation:

We must first balance our decomposition equation KClO3 -> K + ClO3

The amount of oxygen in CLO3 is 3 times the original. We begin by converting 15g of KClO3 to moles. 15 / (39.1 + 35.45 + 3(16) ) = 0.122 mols.

Then we go to moles of oxygen,

.122 * 3 = 0.367 mols of Oxygen

Then to grams of Oxygen

.367 * 16 = 5.875 g

Answer:  Molecular Formula is C5H5

Explanation:   M(CH) = 13.018 g/mol

 Empirical formula of compound is (CH)x in which x = 2,3,4,...

   Molar mass of the substance is 65 g.   x = 65 g/mol : 13 g/mol = 5

Answer:

.496 M .

Explanation:

15.5 mL of .8 M NaOH will contain .0155 x .8 moles of  NaOH

moles of  NaOH = .0124 moles

For neutralization,  moles contained by 25 mL of HCl  = .0124

Hence molarity of HCl = .0124 / .025

= .496 M .

0.496 M is the molarity of an HCl solution if 25.0 mL of the solution is neutralized by 15.5 mL of 0.800 M NaOH.

Molarity (M) is the amount of a substance in a certain volume of solution. Molarity is defined as the moles of a solute per litres of a solution. Molarity is also known as the molar concentration of a solution.

Molarity = [tex]\frac{Moles \;solute}{Volume of solution in litre}[/tex]

15.5 mL of 0.8 M NaOH will contain 0.0155 x 0.8 moles of  NaOH

Moles of  NaOH = 0.0124 moles

For neutralization,  moles contained by 25 mL of HCl  = 0.0124

Hence molarity of HCl = [tex]\frac{0.0124}{0.025}[/tex]

= 0.496 M .

Hence,  0.496 M is the molarity of an HCl solution if 25.0 mL of the solution is neutralized by 15.5 mL of 0.800 M NaOH.

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Answer: The specific heat capacity of the unknown metal given is [tex]0.466 J/g^{o}C[/tex].

Explanation:

Given: Mass = 225 g

Change in temperature = [tex]13^{o}C[/tex]

Heat energy = 1363 J

The formula used to calculate specific heat is as follows.

[tex]q = m \times C \times \Delta T[/tex]

where,

q = heat energy

m = mass of substance

C = specific heat

[tex]\Delta T[/tex] = change in temperature

Substitute the values into above formula as follows.

[tex]q = m \times C \times \Delta T\\1363 J = 225 g \times C \times 13^{o}C\\C = \frac{1363 J}{225 g \times 13^{o}C}\\= 0.466 J/g^{o}C[/tex]

Thus, we can conclude that the specific heat capacity of the unknown metal given is [tex]0.466 J/g^{o}C[/tex].

Answer:

....

Explanation:

Answer:

__3__parasitism-Ticks can attach to the skin of humans or other mammals.  The ticks feed on the blood to grow.

__1__mutualism-Nitrogen-fixing bacteria get a place to live and food in the roots of plants while helping the plant.

__2__commensalism-Bromeliads are plants that live in the tall trees in the rainforest. The tree is not harmed by them.

Explanation:

The word that describes each statement would be mutualism, commensalism, and parasitism respectively.

It is a form of interaction involving two organisms of different species.

There are different types of symbiotic interactions:

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Answer:

0.055M

Explanation:

Using the formula as follows:

CaVa = CbVb

Where;

Ca = concentration of acid (M)

Cb = concentration of base (M)

Va = volume of acid (mL)

Vb = volume of base (mL)

According to the information given in this question, Ca (HCl) = ?, Cb (NaOH) = 0.150, Va (HCl) = 86.30mL, Vb (NaOH) = 31.75mL

Using CaVa = CbVb

Ca = CbVb ÷ Va

Ca = (0.150 × 31.75) ÷ 86.30

Ca = 4.7625 ÷ 86.30

Ca = 0.055M

Answer:

the state or quality of a material or membrane that causes it to allow liquids or gases to pass through it.

You have the correct answer

Answer:

Fe2O3 + C → 2Fe + CO3

Explanation:

The unbalanced equation given in this question is as follows:

Fe2O3 + C → Fe + C03

To balance this equation, one should ensure that the number of atoms of each element on both sides of the equation is equal. The balanced equation is as follows;

Fe2O3 + C → 2Fe + CO3

N.B, there are;

- 2atoms of Fe on both sides

- 1 atom of C on both sides

- 3 moles of O on both sides

Answer:

The answer is D

Explanation:

All the other options are associated with chemical change

Answer:

D

Explanation:

when we say phisical change it is change of phisical so it does not change the composition because when we say it alther the composition it will be chemical change.