draw the lewis structure for the molecule N2O

Answer:

Explanation:

The number of molecules can be found by using the formula

N = n × L

where n is the number of moles

N is the number of entities

L is the Avogadro's constant which is

6.02 × 10²³ entities

From the question we have

N = 3 × 6.02 × 10²³

We have the final answer as

Hope this helps you

Answer: OB. 1.806 x 1024

Explanation:

The formulas for the binary ionic compounds are:

We want to write the formulas of different binary ionic compounds. to do so, we need to consider the octet's rule.

The octet's rule establishes that atoms will lose, gain or share electrons to achieve the electron configuration of the nearest noble gas (8 valence electrons except for He with 2).

K has 1 valence electron so it will lose 1 electron to form K⁺. I has 7 valence electrons so it will gain 1 electron to form I⁻. The neutral compound between K⁺ and I⁻ is KI.

Mg has 2 valence electrons so it will lose 2 electrons to form Mg⁺². Cl has 7 valence electrons so it will gain 1 electron to form Cl⁻. The neutral compound between Mg⁺²⁺ and Cl⁻ is MgCl₂.

Na has 1 valence electron so it will lose 1 electron to form Na⁺. S has 6 valence electrons so it will gain 2 electrons to form S⁻². The neutral compound between Na⁺ and S⁻² is Na₂S.

Al has 3 valence electrons so it will lose 3 electrons to form Al³⁺. S has 6 valence electrons so it will gain 2 electrons to form S⁻². The neutral compound between Al³⁺ and S⁻² is Al₂S₃.

Al has 3 valence electrons so it will lose 3 electrons to form Al³⁺. N has 5 valence electrons so it will gain 3 electrons to form N³⁻. The neutral compound between Al³⁺ and N³⁻ is AlN.

The formulas for the binary ionic compounds are:

Learn more about binary compounds here: https://brainly.com/question/7960132

Answer:

Al₂O₃ + 2 NaOH + 3 H₂O = 2 NaAl(OH)₄

Answer: potassium and sodium have similar properties

Explanation: Na and K belong to alkali metals. Both have one electron in outer shell. Calcium has two electrons in outer shell.

Answer:

Two elements of oxygen are presented.

Answer:

[tex]HCl conc=2.2M[/tex]

Explanation:

From the question we are told that:

Mass of zinc [tex]Mass_{z_n}=2.5g[/tex]

Initial conc of HCl [tex]HConc_1=6.0M[/tex]

Initial volume of HCl [tex]Hvol_1=20.0mL[/tex]

Molar mass of zinc [tex]M_{Z_n}=65.38g/mol[/tex]

Generally the equation for reaction  is mathematically given by

[tex]2HCL+Zn\implies ZnCl_2 +H_2[/tex]

Generally the equation for moles of zinc [tex]m_{z_n}[/tex] is mathematically given by

[tex]m_{z_n}=\frac{Mass_{Z_n}}{M_{Z_n}}[/tex]

[tex]m_{z_n}=\frac{2.5g}{M_{65.38}}[/tex]

[tex]m_{z_n}=0.038molZn[/tex]

Generally the equation for moles of [tex]m_{HCl}[/tex] is mathematically given by

[tex]m_{HCl}=HConc_1*Hvol_1[/tex]

[tex]m_{HCl}=6.0M*20.0mL[/tex]

[tex]m_{HCl}=6.0M*20.0*10^{-3}L[/tex]

[tex]m_{HCl}=0.12\ mol\ HCl[/tex]

Generally the reacted moles of HCl [tex]HCl_[reacted][/tex] is mathematically given by

Since

Zn:HCl =1:2

Therefore

[tex]HCl_[reacted]=0.038*\frac{2}{1}[/tex]

[tex]HCl_[reacted]=0.076mol \ HCl[/tex]

Generally the moles of HCl after Zn oxidization X is mathematically given by

[tex]x=0.12-0.076[/tex]

[tex]x=0.044 mol HCl[/tex]

Generally the conc of hydrochloride acid X is mathematically given by

[tex]X=\frac{0.044}{0.020}[/tex]

[tex]X=2.2 M Hcl[/tex]

Therefore Conc of HCl

[tex]HCl conc=2.2M[/tex]

Answer:

The equilbrium constant is 179.6

Explanation:

To solve this question we can use the equation:

ΔG = -RTlnK

Where ΔG is Gibbs free energy = 12.86kJ/mol

R is gas constant = 8.314x10⁻³kJ/molK

T is absolute temperature = 298K

And K is equilibrium constant.

Replacing:

12.86kJ/mol = -8.314x10⁻³kJ/molK*298K lnK

5.19 = lnK

e^5.19 = K

179.6 = K

Answer:

Autotrophs store chemical energy in carbohydrate food molecules they build themselves. Most autotrophs make their food through photosynthesis using the energy of the sun. Heterotrophs cannot make their own food, so they must eat or absorb it.

Answer:

The initial pressure was 852.27 torr.

Explanation:

Given that,

Initial temperature, T = 315 K

Final temperature, T' = 231 K

Final pressure, P' = 625 torr

We need to find the initial pressure of the gas. We know that, the relation between pressure and temperature is given by :

[tex]\dfrac{P}{P'}=\dfrac{T}{T'}\\\\P=\dfrac{P'T}{T'}\\\\P=\dfrac{625\times 315}{231}\\\\P=852.27\ torr[/tex]

So, the initial pressure was 852.27 torr.

Answer:

A & B

Explanation:

This is because insulators just keep the house warm, while rheostats just control the current in the house. The circuit breakers and fuses, can stop something like a fire faster than the other two just by turning them off. Making them safety features in a house! Hope this helps! Plz mark as brainliest!

Answer:

circuit breakers and fuses

Explanation:

Circuit breakers and fuses are very similar as they are both designed to protect a circuit from an overload or short-circuit

Answer:

C. Carbon monoxide

This is my answer tell me if wrong

Ammonia among all the gases effuses most rapidly. Therefore, the correct option is option d.

A gas can escape or flow through a small aperture into a vacuum or a region with lower pressure through a process called effusion. It is a specific kind of gas flow that takes place in those circumstances. The square root of a gas's molar mass has an inverse relationship with the rate of effusion of that gas. The gas will effuse more quickly the lower the molar mass.

The molar mass are calculated as:

a. hydrogen chloride (HCl): H (1 g/mol) + Cl (35.5 g/mol) = 36.5 g/mol

b. nitrogen (N2): N (14 g/mol) + N (14 g/mol) = 28 g/mol

c. carbon monoxide (CO): C (12 g/mol) + O (16 g/mol) = 28 g/mol

d. ammonia (NH3): N (14 g/mol) + H (1 g/mol) + H (1 g/mol) + H (1 g/mol) = 17 g/mol

e. oxygen (O2): O (16 g/mol) + O (16 g/mol) = 32 g/mol

The square root of the molar masses are given as:

a. √36.5 ≈ 6.04

b. √28 ≈ 5.29

c. √28 ≈ 5.29

d. √17 ≈ 4.12

e. √32 ≈ 5.66

Ammonia has the lowest molar mass and hence the fastest effusion rate of all the gases.

Therefore, the correct option is option d.

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Answer:

The average kinetic energy has increased. More molecules have a higher energy level.

Explanation:

I so esay

Answer:

27.86x10^-3 Kg

Explanation:

Hi! To get the result you only need to use this formula: m = n x M <=> m = 1.070 x ((2x12.01 + 2x1.01) x 10^-3) = 27.8628 x 10^-3 Kg. Hope it helped!

Answer:

Answer. Explanation: Chlorine gas bleaches the damp litmus (red or blue). Bleaching is an oxidation process.

Answer:

0.285577616426424

Explanation:

Hope this helps!

Answer:

6

Explanation:

As , 2H2 + O2 = 2H2O

with 6 H2, 4O2 is excess.

H2O molecules formed = 6

Answer:

B. Trees can be replenished

Explanation:

Trees are renewable and replenishable resources. Trees can be planted, grown up, and harvested for timber.

Answer:

The empirical formula of the oxide is CuO

Explanation:

Copper(II) oxide or cupric oxide is the inorganic compound with the formula CuO

Answer:

Pure substances are further divided into elements and compounds. The combination of two or more pure substances is called a mixture. Mixtures can be classified into two types viz. heterogeneous and homogeneous mixtures.

Explanation:

Answer:

English Language Learners Definition of number. (Entry 1 of 2) : a word or symbol (such as "five" or "16") that represents a specific amount or quantity. : a number or a set of numbers and other symbols that is used to identify a person or thing.

Explanation:

79 is the number of protons gold has.

Hope this helps; have a great day!

Answer:

E

Explanation:

no of grams in picture c = A+B

= 200+10 =210

for D its also 210 ..... the water already contains the salt .....so the mass of salt has added to the mass of water which is still 210

that's all .... have fun

Answer

0.32 is that answer

Explanation:

you just use the calculator

Answer:

Explanation:

10L

Taking into accoun the ideal gas law, The volume of a container that contains 24.0 grams of N2 gas at 328K and 0.884 atm is 26.07 L.

An ideal gas is a theoretical gas that is considered to be composed of point particles that move randomly and do not interact with each other. Gases in general are ideal when they are at high temperatures and low pressures.

The pressure, P, the temperature, T, and the volume, V, of an ideal gas, are related by a simple formula called the ideal gas law:  

P×V = n×R×T

where P is the gas pressure, V is the volume that occupies, T is its temperature, R is the ideal gas constant, and n is the number of moles of the gas. The universal constant of ideal gases R has the same value for all gaseous substances.

In this case, you know:

Replacing in the ideal gas law:

0.884 atm×V= 0.857 moles× 0.082[tex]\frac{atmL}{molK}[/tex] ×328 K

Solving:

[tex]V=\frac{0.857 molesx 0.082 \frac{atmL}{molK}x328 K}{0.884 atm}[/tex]

V= 26.07 L

The volume of a container that contains 24.0 grams of N2 gas at 328K and 0.884 atm is 26.07 L.

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