what is the difference between Temperate grassland and Desert????????

Answer: The answer is two.

Explanation: The answer is two because it represents a molecule having a nonpolar convalent bond.

The sound was repeated because of the phenomenon of echo. The speed of sound in the metal is 800 m/s.

Echo results from the reflection of sound waves. The reason why a sound may be heard twice owes to the phenomenon of reflection which leads to echo.

To determine the speed of sound in the metal;

Length of metal = 1000 m

Time taken between the two sounds = 2.5 s

Using the formula;

V = 2d/t

V = 2(1000)/2.5

V = 800 m/s

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Ammonia gas will diffuse faster than hydrogen chloride gas because the relative molecular mass of ammonia is smaller than that of hydrogen chloride.

According to Graham's law, the diffusion rate of gases is inversely proportional to the square root of their molecular weights.

Thus, the lower the molecular weight of a gas, the faster it will diffuse.

The molecular weight of ammonia is 17 while that of hydrogen chloride is 36.5. Thus, ammonia will diffuse faster than hydrogen chloride.

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Answer:

Ernest Rutherford's atomic models the basis of our understanding of atoms. The model describes the atom as a tiny and dense with a positively charged core called a nucleus with neutral subatomic particles called neutrons. The model includes negative-charged subatomic particles called electrons that orbit the nucleus.

Ernest Rutherford and his fellow scientist created an experiment in which they bombarded very thin sheets of gold foil with fast moving alpha particles. Alpha particles are a type of radioactive particles that are positively charged. During their time, the current atomic model showed that an atom’s mass and charge are uniformly distributed throughout the atom. Using that model, they expected that the alpha particles would pass through the gold foil with slight deflection or even none at all. While the experiment did show that they were undeflected, they were surprised to see that a small amount bounced of the the foil a large angles.

This experiment led Rutherford to conclude that the particles that were highly deflected must have experienced powerful enough force within the atom to be deflected. He concluded that all of the positive charges and the majority of the mass of the atom must be condensed in a very small space in the atom’s interior, which he called the nucleus.  In the nuclear model, the proton and  neutrons are in the nucleus, the center of the atom. Electrons a distributed throughout the atom, orbiting the nucleus.

I hope you understand! :)

Ernest Rutherford's  model describes the atom as a tiny and dense with a positively charged core called a nucleus with neutral subatomic particles called neutrons. The model includes negative-charged subatomic particles called electrons that orbit the nucleus.

Ernest Rutherford and his fellow scientist created an experiment in which they bombarded very thin sheets of gold foil with fast moving alpha particles. Alpha particles are a type of radioactive particles that are positively charged. During their time, the current atomic model showed that an atom’s mass and charge are uniformly distributed throughout the atom. Using that model, they expected that the alpha particles would pass through the gold foil with slight deflection or even none at all. While the experiment did show that they were undeflected, they were surprised to see that a small amount bounced of the the foil a large angles.

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Answer:

A c

Explanation:

Answer:

Cl2 + 2Nabr = 2NaCl+Br2

Explanation:

Add coefficients to make sure you have the same number of atoms on each side.

Answer:

what is the question?

Explanation:

Answer:

Necesita un flujo libre de electrones, un empujón para mover las cargas a través del circuito cerrado y una vía para transportar las cargas. Lo siento, estoy usando el traductor de googl

Explanation:

Answer:

False

Explanation:

If the atom has the same number of protons and electroncs, the atom would have a net charge of 0, meaning it has a neutral charge. A positively charged atom would have more protons (which are positively charged) than electrons (which are negatively charged)

Answer:

Maple syrup has nutraceutical potential given the macronutrients (carbohydrates, primarily sucrose), micronutrients (minerals and vitamins), and phytochemicals (primarily phenolics) found in this natural sweetener.

Explanation:

Answer:

Rubidium sulfate !! Hope this helps <3

Answer:

H2O is a covalent compound and is called a universal solvent because it dissolves most substances than any other known liquid

The universal solvent, H₂O, is a covalent molecule that dissolves more compounds than any other liquid.

Water makes an excellent solvent because of its physical and chemical composition. In water molecules, hydrogen and oxygen atoms are organized polarly, with hydrogen possessing a positive electric charges and oxide having a negative electrical charge.

Water is referred to be the "universal solvent" because it has a wider range of dissolving abilities than any other liquid. Every living thing on the world requires this. It indicates that wherever water flows, whether through the air, the ground, or our bodies, it carries valuable molecules, minerals, and nutrients.

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Answer:

valence electron number

Explanation:

trust me

Valence electron number is the characteristic do electronegativity differences indicate about reactions between atoms. Hence option C is correct.

Electronegativity is defined as the propensity for atoms involved in covalent bonds to draw the bonding electrons. An indicator of how strongly atoms draw bonding electrons to them is their electronegativity. How polar a bond is depends on the difference in electronegativity between two atoms. Since there is no difference in electronegativity between the two identical atoms in a diatomic molecule, the bond is nonpolar or pure covalent.

Valence electron number is defined as an atom's associated outer shell electron that, if the outer shell is open, can take part in the formation of a chemical bond.

Thus, valence electron number is the characteristic do electronegativity differences indicate about reactions between atoms. Hence option C is correct.

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Answer: Maybe Unkown 1. I am not sure.

Explanation:

Answer:

the channel tunnel has been a very busy and challenging experience and we are mot doing.

Explanation:

ok and I like the country studies opportunity and I will be found by him too as he is a fact in the sentence.

Answerl

see explanation

Explanation:

Question

4.

How many grams would 0 .50 moles of Mg be?

Mg has  an atomic weight of 24 so 1 mole of Mg weighs 24 gms

0.50 moles weigh 0.50 X24gm = 12 gm                

5.

10 moles of Al = ? atoms

1 mole = 6.02 X10^23 atoms ...Avogadros number

10 moles is 10 X6.02X10^23 = 6.02X10^24

6.

How many atoms are in 10 moles of Zinc?

a mole is Avogadros number

same as 10 moles of Al,10 moles of Zn=  6.02 X10^24 atoms

7.

If you had 3,5 x 10 - atoms of carbon how many grams would you have?

8.

Given 100g of C = ? atoms

Carbon has an atomic of 12  100 gm of C are 100/12 = 8.33 moles of C

each mole comtains Avogadros number so there are

8.33 X 6.02 X10^23 = 5.01 X10^24 atoms of C

Answer:

the answer is 250kg but i am not sure

Explanation:

give me brainlest

Answer:

7.5 seconds

Explanation:

We can use the second equation of accelerated motion

vf = vi + a Δt

We know that the intial velocity (vi) is 30m/s, and the final velocity is 0 since it comes to a stop. We also know that the acceleration is -4m/s.

We can rearrange the equation for Δt (time)

vf = vi + a Δt

vf - vi = a Δt

(vf - vi)/a = Δt

and we can substitute the values into the equation for Δt now

Δt = (vf - vi)/a

Δt = (0 - 30)/-4

Δt = -30/-4

Δt = 7.5

Answer:

N2(g) + 3H2(g) <---> 2NH3(g)

This is a reversible reaction

Answer:

s = 0.131 J/g⋅∘C

Explanation:

The amount of heat (q) absorbed by gold could be expressed as:

Answer:

my answer is leter.

C

Explanation:

thanks fore watjing and plss help me in my qwestion

Answer:

[tex]\huge\bold{\purple{\bold{⚡B-34.3⚡}}} [/tex]

Explanation:

According to anglesum property-

Answer: The sun's radiation strikes the ground, thus warming the rocks. As the rock's temperature rises due to conduction, heat energy is released into the atmosphere, forming a bubble of air which is warmer than the surrounding air.

Explanation:

Answer:

they are? I think you should comment "STOP" to them

Answer:

NONE OF THE ABOVE

Explanation:

Answer:

its None of the above.

Explanation:

the answer should be joint

Answer:

How many grams Ni in 1 mol? The answer is 58.6934.

We assume you are converting between grams Ni and mole.

You can view more details on each measurement unit:

molecular weight of Ni or mol

The SI base unit for amount of substance is the mole.

1 grams Ni is equal to 0.017037690779543 mole.

Note that rounding errors may occur, so always check the results.

Use this page to learn how to convert between grams Ni and mole.

Type in your own numbers in the form to convert the units!

hope that help

Explanation:

Answer:

0.05  moles

Explanation:

In a mole of any substance, there exist 6.02

⋅   10

^23 units of that substance.

So here, we got:

3.01 ⋅ 10^22 Mg atoms ⋅ 1 mole / 6.02 ⋅ 10^23 Mg atoms

= 0.05  moles

Hope that helps!

Answer:

Chlorine (Cl)

Explanation:

Bromine: 2.96 electronegative

Chlorine: 3.16 electronegative

3.16 > 2.96

Hope this helps!!

Answer:

High- pressure/low-temperature (HPLT) metamorphism is believed almost exclusively to occur at such cool conditions inside the convergent plate margins.

Explanation:

Hope it helps:)