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3 years ago

Consider the balanced chemical equation,

Chemistry

2 answers:

Gemiola [76]3 years ago

7 0

Answer: we started with 10 ions of Mg and 20 ions of F.

Explanation: The given balanced equation is:

$MgCl_2(aq)+2AgF(aq)\rightarrow 2AgCl(s)+MgF_2(aq)$

From this balanced equation, 2 formula units of AgCl are formed by 2 formula units of AgF and 1 formula unit of $MgCl_2$ .

From here, the ratio between AgCl and AgF is 2:2 that is 1:1 and the ratio between AgCl and $MgCl_2$ is 2:1 ,

Since the ratio between AgCl and AgF is 1:1, 20 formula units of AgCl will be formed by 20 formula units of AgF.

The ratio between AgCl and $MgCl_2$ is 2:1, so 20 formula units of AgCl will be formed by 10 formula units of $MgCl_2$ .

One formula unit of $MgCl_2$ contains one ion of Mg, so 10 formula units of $MgCl_2$ will contain 10 ions of Mg.

Similarly, 1 formula unit of AgF contains one ion of F, so 20 formula units of AgF will contain 20 ions of F.

So, we started with 10 ions of Mg and 20 ions of F to make 20 formula units of AgCl.

Montano1993 [528]3 years ago

4 0

We started with twenty ions of Mg and twenty ions of F. Producing 20 units of AgCl requires twenty MgCl2 since it is the only source of magnesium. Similarly it requires twenty AgF since it is the only source of silver.

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A hot air balloon filled with 1.27x10^6L of an ideal gas on a cool morning of 11 degrees C. the air is heated to 105 degrees C.

Elenna [48]

Answer:

New volume = $1.69\times 10^6$ L

Explanation:

Using Charle's law

$\frac {V_1}{T_1}=\frac {V_2}{T_2}$

Given ,

V₁ = $1.27\times 10^6$ L

V₂ = ?

T₁ = 11 °C

T₂ = 105 °C

The conversion of T( °C) to T(K) is shown below:

T(K) = T( °C) + 273.15

So,

T₁ = (11 + 273.15) K = 284.15 K

T₂ = (105 + 273.15) K = 378.15 K

Using above equation as:

$\frac{1.27\times 10^6}{284.15}=\frac{V_2}{378.15}$

$V_2=\frac{1.27\times 10^6\cdot \:378.15}{284.15}$

New volume = $1.69\times 10^6$ L

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4 years ago

Which of these objects converts light/radiant energy to chemical energy?

ludmilkaskok [199]

Answer:

nuclear power plant

Explanation:

because it's a nuclear power plant it's supposed to do that

3 0

3 years ago

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What is 2n^2 rule ( of science)

lozanna [386]

2n² rule:

This rule is used to determine number of electrons in particular shell.

n=1 means K shell

n=2 means L shell

n=3 means M shell

n=4means N shell

The first K shell can hold upto 2 electrons, L shell can hold up to 8, third M shell can hold up to 18and the fourth N shell can hold upto 32 electrons. This rule of arrangement of electrons according to the shell is known 2n2 rule where n means number of shell.

For example: There is one proton in the nucleus of hydrogen atom, which moves in K shell path. It has no neutron.

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3 years ago

A neutral atom in its ground state contains 28 electrons. this element is considered a ________ element, and has _______ electro

zalisa [80]

A neutral atom in its ground state contains 28 electrons. this element is considered a transition element, and has 8 electrons in orbitals with l = 2.
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l is azimuthal quantum number, l = 2 describes d orbital. There is eight electrons in 3d orbital.

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4 years ago

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ira [324]

Answer:

C. how the size of a magnet affects the strength of its magnetic pull on objects.

Explanation:

"Magnetic force" is inversely proportional to distance squared. This is also related to the size of a magnet. The bigger the size, the bigger the domain it occupies and the stronger the magnetic field. However, this is not often the case and it largely depends on the types of magnets.

In the situation above, Jazelle wanted to determine how her five different-sized magnet affect the strength of their magnetic pull on the paper clips. In order to do this, she tried to measure the distance. The closer the distance, the higher the magnetic field and the stronger the strength. The farther the distance, the lower the magnetic field and the weaker the strength.

So, this explains the answer.

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3 years ago