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asambeis [7]
3 years ago
12

In this reaction what is the correct coefficient for sodium chloride? pb(no3)2 ? nacl → pbcl2 ? nano3

Chemistry
2 answers:
weqwewe [10]3 years ago
8 0

Answer:

2

Explanation:

The unbalanced reaction is shown below as:-

Pb(NO_3)_2+NaCl\rightarrow PbCl_2+NaNO_3

On the left hand side,  

There is 1 lead atom and 2 nitrogen atoms and 6 oxygen atoms  and 1 sodium atom and 1 chlorine atom

On the right hand side,  

There is 1 lead atom and 2 chlorine atoms and 3 oxygen atoms  and 1 sodium atom

Thus,  

Right side, NaNO_3 must be multiplied by 2 so to balance nitrogen and oxygen.

Left side, NaCl is multiplied by 2 so to balance the whole reaction.

Thus, the balanced reaction is:-

Pb(NO_3)_2+2NaCl\rightarrow PbCl_2+2NaNO_3

<u>Coefficient of the sodium chloride in the balanced equation - 2</u>

Dovator [93]3 years ago
4 0
<span>pb(no3)2 + 2 nacl → pbcl2 + 2nano3</span>
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Answer:

The eruption of Mount Tambora eventually reduced the average global temperature by as much as 3 °C.

Explanation:

The Mount Tambora eruption was the largest and most destructive volcanic event in recorded history, expelling as much as 150 cubic km (roughly 36 cubic miles) of ash, pumice, and other rock, and aerosols—including an estimated 60 megatons of sulfur—into the atmosphere. As that material mixed with atmospheric gases, it prevented substantial amounts of sunlight from reaching Earth’s surface, eventually reducing the average global temperature by as much as 3 °C.

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3 years ago
What element is represented by the following electron configuration:
Alecsey [184]
For better representation, let me rewrite the electronic configuration:

<span>1s</span>²<span>2s</span>²<span>2p</span>⁶<span>3s</span>²<span>3p</span>⁶<span>4s</span>²<span>3d</span>⁴

The exponents represent the number of electrons in the designated subshell. Thus, the total number of electrons are:
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6 0
3 years ago
6) A volume of 473 mL of oxygen was collected at 27°C. What volume would the oxygen occupy at
sertanlavr [38]

Answer : The volume of oxygen occupy at 173° would be, 703.2 mL

Explanation :

Charles' Law : It states that volume of the gas is directly proportional to the temperature of the gas at constant pressure.

Mathematically,

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

where,

V_1\text{ and }T_1 are the initial volume and temperature of the gas.

V_2\text{ and }T_2 are the final volume and temperature of the gas.

We are given:

V_1=473mL\\T_1=27^oC=(27+273)K=300K\\V_2=?\\T_2=173^oC=(173+273)K=446K

Now put all the given values in above equation, we get:

\frac{473mL}{300K}=\frac{V_2}{446K}\\\\V_2=703.2mL

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3 years ago
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7 0
3 years ago
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Marysya12 [62]

Answer:

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3 years ago
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