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Charra [1.4K]
3 years ago
8

The Al-Aqsa Mosque and Dome of the Rock are located in

Chemistry
1 answer:
kvasek [131]3 years ago
7 0

The correct answer is - Jerusalem

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This system is at equilibrium, what change would shift the equilibrium to the right?
Sidana [21]

Answer:

fjrhg

Explanation:

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What solution can you add to of the mixture of NH4 (aq) and Ca2 (aq) to precipitate one cation while keeping the other cation in
vekshin1

Answer:H2SO4

Explanation:calcium forms a precipitate in a sulfide compound of so4

7 0
4 years ago
If the average speed of a helium atom at a certain temperature is 1230. m/s, what is the speed in miles per hour? (1mi =1609m)
Darya [45]
In order to do conversion on these types of problems. <span>
1.You first have to determine the relationship and the current unit and the target unit which it will be converted into.</span> <span>
2.In this case feet to meters and seconds to minutes</span> <span>
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6 0
3 years ago
Calculate the number of particles in a 0.75 gram sample of Calcium Nitrate; Ca(NO3)2​
kkurt [141]

The number of particles : 2.75 x 10²¹

<h3>Further explanation  </h3>

A mole is a unit of many particles (atoms, molecules, ions) where 1 mole is the number of particles contained in a substance that is the same amount as many atoms in 12 gr C-12  

1 mole = 6.02.10²³ particles  

\tt n=\dfrac{N}{N_o}

N = number of particles  

No = Avogadro number (6.02.10²³)  

n = number of moles  

While the number of moles can also be obtained by dividing the mass (in grams) with the molar mass of element or molecule  

0.75 gram sample of Calcium Nitrate; Ca(NO₃)₂

MW of Ca(NO₃)₂ : 164.09 g/mol

\tt mol~Ca(NO_3)_2=\dfrac{0.75}{164.09}=0.00457

The number of particles

\tt N=n\times N_o\\\\N=0.00457\times 6.02\times 10^{23}=2.75\times 10^{21}

5 0
3 years ago
Sound waves are mechanical waves in which the particles in the medium vibrate in a direction parallel to the direction of energy
Viefleur [7K]
Answer b longitudinal waves
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4 years ago
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