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Answer:

The average atomic mass of neon20.18 amu.

A is the reactant, B is the reaction process (or the name of the option that is hidden), C are the products, D is the coefficient, and E is the subscript.

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Answer:

true

Explanation:

cause thereare both in liquid form

Option  D. Zn(s) → Zn2+(aq) + 2e and Ni2+(aq) + 2e → Ni(s)

The emf of a half-cell, with respect to the standard hydrogen electrode, is called the reduction potential. The emf for the Mg-Zn cell described would be: E=Eo(red) (Zn) - Eo(red) (Mg) = -0.76 - (-2.38) = 1.62V if the solutions are 1.0 M.

A half-cell reaction is either an oxidation reaction in which electrons are lost or a reduction reaction in which electrons are gained. The reactions occur in an electrochemical cell in which the electrons are lost at the anode through oxidation and consumed at the cathode where the reduction occurs.

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Answer:

D. Both are used by radio stations to transmit sound

Explanation:

The main difference between both modulations is that in frequency modulation, the frequency of the carrier wave is modified as per the transmit data, while in amplitude modulation, the carrier wave is modified according to the data. because of this it can NOT be A, B, or C but it CAN be D

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The amplitude modulation and frequency modulation techniques similar as , Both are used by radio stations to transmit sound.

So, option D is correct one.

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Answer:

If u use math why It will give u the answer like 3x3=9

Explanation:

Answer:

to have a "full" last orbital shell

Explanation:

They can not live withought ther outer most shell

Answer:

B ) Known as the Age of Mammals

Explanation:

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Answer:

B and C

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Answer:

The correct answer is Heterogeneous mixture

Explanation:

Heterogeneous mixture are those mixture in which:

Substance is distributed in non uniform manner.

Two distinct layers are formed

Thus when water and dirt are mixed together it results in the formation of  a heterogeneous mixture and after sometimes two different layers will be observed.

Hence, in the bottle there is a heterogeneous mixture of water and dirt.

Answer:

13.4 mol Ar

General Formulas and Concepts:

Chemistry - Atomic Structure

Explanation:

Step 1: Define

534 g Ar

Step 2: Identify Conversions

Molar Mass of Ar - 39.95 g/mol

Step 3: Convert

[tex]534 \ g \ Ar(\frac{1 \ mol \ Ar}{39.95 \ g \ Ar} )[/tex] = 13.3667 mol Ar

Step 4: Check

We are given 3 sig figs. Follow sig fig rules and round.

13.3667 mol Ar ≈ 13.4 mol Ar

Answer:

The number of moles in 452 grams of Argon is 13.31 moles.

Explanation:

Answer:

[tex]\boxed {\boxed {\sf A. \ Nickel}}[/tex]

Explanation:

First, we must find the density of the unknown metal.

Density is found by dividing the mass by the volume.

[tex]d=\frac{m}{v}[/tex]

The mass of the metal is 89 grams and the density is 10 cubic centimeters.

[tex]m= 89 \ g \\d= 10 \ cm^3[/tex]

Substitute the values into the formula.

[tex]d=\frac{89 \ g}{10 \ cm^3}[/tex]

Divide.

[tex]d= 8.9 \ g/cm^3[/tex]

Now we know the density and can identify the unknown metal.

The density matches nickel's density. Therefore, this metal must be nickel.

Answer:

In chemistry, a product is a substance that is formed as the result of a chemical reaction. In a reaction, starting materials called reactants interact with each other.

Explanation:

Answer:

Electron Shells

Outermost level: Valence level

Explanation:

The number of atoms of any element in the given chemical formula is the number that is written on the food of the symbol of that element. The circles around the nucleus called shells or orbits.

Atom is the smallest particle of any matter. Atom combines to form element and element combine to form molecule or compound. In the nucleus, proton and neutron are present. Electron has -1 charge while proton has +1 charge.

Atom consists of electron, proton and neutron. The total mass of atom is inside the nucleus. Inside the nucleus proton and neutron is there. So calculate mass of an atom, total mass of all protons is added to the total mass of neutron. Electrons revolve around the nucleus in circular path called orbit or shells.

Thus the circles around the nucleus called shells or orbits.

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Answer:

See the answer below

Explanation:

The statement that could best explain how the offspring could inherit a trait not shown in the phenotypes of either parent would be that both parents are heterozygous for the red color.

Heterozygous parents can produce offspring with a phenotype that is distinctly different from that of either parent if the recessive alleles come together during random fusion of gametes.

Let us assume that the red color (R) in the New Hampshire chicken is the dominant one and the recessive one is the golden color (r). The genotype of the heterozygous parents would be Rr.

        Rr    x    Rr

     RR   Rr   Rr   rr

There is a probability (1/4) of producing a golden color chicken (rr), a trait that is not displayed in either of the parents.

The substance is not produced during the electrolysis of concentrated aqueous sodium chloride is D) Sodium chloride​

while an electric current is handed via concentrated sodium chloride answer, hydrogen gasoline bureaucracy at the negative electrode, chlorine gas bureaucracy at the fantastic electrode, and an answer of sodium hydroxide also form.

(a) when a concentrated solution of sodium chloride (brine) is electrolyzed, it gets decomposed. this is a decomposition reaction. the products of this reaction are sodium hydroxide, chlorine, and hydrogen.

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Answer:

is 7.................

answer:

a^2+b^2= (a+b)² -2ab

Answer:

[tex]V=0.001\ m^3[/tex]

Explanation:

Mass, m = 1 kg

The density of water, d = 1000 kg/m³

We need to find the volume of water. The formula for the density of an object is equal to mass divided by volume. Its formula is :

d = m/V

V is the volume of water

[tex]V=\dfrac{m}{d}\\\\V=\dfrac{1\ kg}{1000\ kg/m^3}\\\\=0.001\ m^3[/tex]

So, the volume of water is [tex]0.001\ m^3[/tex].

Answer:

Volume of water has a mass of 1 kg  is explained below in details.

Explanation:

One liter of h2O has a volume of approximately specifically one kilogram when estimated at its maximum frequency, which happens at about 4 °C. It observes, therefore, that thousand of a liter, recognized as one milliliter (1 mL), of h2O has a volume of about 1 g; 1000 liters of h2O has a volume of about 1000 kg (1 tonne).

Answer:

six

Explanation:

Valence electrons are the electrons in the outermost shell, or energy level, of an atom. For example, oxygen has six valence electrons, two in the 2s subshell and four in the 2p subshell.

Answer:

Six!

Explanation:

Valence electrons are the electrons in the outermost shell of an atom.

Answer:

H

Explanation:

Answer:

H

Explanation:

Because an object in motion will stay in motion, unless acted upon by another object

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Answer:

Adding enough thermal energy to a substance can cause a change of state to occur. The change of state from a solid to a liquid is called melting. When energy is added to an ice cube, the ice particles speed up as energy is absorbed. When the particles move fast enough, the solid ice melts and becomes liquid water

Answer:

c and d

Explanation:

Answer:

NaNO3

Explanation:

NO3^-1 has a charge of minus 1.

Na^+1 has a charge of +1

When they combine, the charges are not noted. You get NaNO3

Sodium Nitrate

Answer:

physical

Explanation: water can change from solid to liquid to a gas

Answer: 40.3 L

Explanation:

To calculate the moles :

[tex]\text{Moles of solute}=\frac{\text{given mass}}{\text{Molar Mass}}[/tex]

[tex]\text{Moles of} Sb_2O_3=\frac{175g}{291.5g/mol}=0.600moles[/tex]

[tex]Sb_2O_3+3C\rightarrow 2Sb+3CO[/tex]  

According to stoichiometry :

1 moles of [tex]Sb_2O_3[/tex] produces = 3 moles of [tex]CO[/tex]

Thus 0.600 moles of [tex]Sb_2O_3[/tex] will produce=[tex]\frac{3}{1}\times 0.600=1.80moles[/tex]  of [tex]CO[/tex]

Volume of [tex]CO=moles\times {\text {Molar volume}}=1.80moles\times 22.4L/mol=40.3L[/tex]

Thus 40.3 L of CO is produced.

Answer: The number of protons equals the number of electrons

Explanation:

The statement that describes the relationship of substance particles in my neutral atom is the number of protons equals the number of electrons. The correct option is C.

Subatomic particles are the charged particles that are present inside the atoms. These particles are electron, proton, and neutron. The electron is negatively charged, a proton is positively charged and neutrons neutrally charges subatomic particle.

Neutron atoms are when there is no positive or negative charge present inside the atoms. This could happen when the negatively charged electron and positively charged proton combine, when negative and positive combines they become neutral.  

Thus, the correct option is C. the number of protons equals the number of electrons.

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Your question is incomplete. Your most probably complete question is given below:

the number of electrons equals the number of megatrons

the number of neutrons equals the number of electrons

the number of protons equals the number of electrons

the number of protons equals the number of neutron

Answer:

Independent is x, which is the time.

Dependent is y, which is the distance.

Answer:

OB

Explanation:

Water is necessary. Since during photosynthesis water reacts with carbon dioxide to form glucose and oxygen.

Calcium is a big NO!!.