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Musya8 [376]
4 years ago
11

Write a net ionic equation for the reaction that occurs when aqueous solutions of hypochlorous acid and sodium hydroxide are com

bined.
Chemistry
1 answer:
kykrilka [37]4 years ago
5 0
HClO+NaOH----> NaClO+H2O
HClO+Na^{+} + OH^{-}---->Na{+}+CLO^{-} +H2O
HClO+ OH^{-}---->CLO^{-} +H2O
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Which of the following is not a chemical change?
MaRussiya [10]

Answer:

May be boiling is the answer because all other options are a proper chemical changes.

3 0
3 years ago
Provide an orbital energy level diagram for the geound state of a nitrogen atom.
Alenkasestr [34]

Answer:

A

Explanation:

Nitrogen is an atom made up of 7 electrons.

To draw the orbital energy level diagram, let us write the orbital notation of the atom;

  7 electrons of Nitrogen:

        1s² 2s² 2p³

So,

 The orbital notation diagram is :

            1s²         2s²          2p³

            ↑↓          ↑↓          ↑↑↑

6 0
3 years ago
Convert: 6 cubic centimeters to fluid ounces. 2.03 0.203 0.00203 0.000203
NNADVOKAT [17]

Convert: 6 cubic centimeters to fluid ounces. 2.03 0.203 0.00203 0.000203

=0.203

6 0
4 years ago
How many molecules in each sample?<br><br> 64.7 g N2<br> 83 g CCl4<br> 19 g C6H12O6
lilavasa [31]

Answer:

  • 1.39x10²⁴ molecules N₂
  • .25x10²³ molecules CCl₄
  • 6.38x10²² molecules C₆H₁₂O₆

Explanation:

First we <u>convert the given masses into moles</u>, using the <em>compounds' respective molar mass</em>:

  • 64.7 g N₂ ÷ 28 g/mol = 2.31 mol N₂
  • 83 g CCl₄ ÷ 153.82 g/mol = 0.540 mol CCl₄
  • 19 g C₆H₁₂O₆ ÷ 180 g/mol = 0.106 mol C₆H₁₂O₆

Then we multiply each amount by <em>Avogadro's number</em>, to <u>calculate the number of molecules</u>:

  • 2.31 mol N₂ * 6.023x10²³ molecules/mol = 1.39x10²⁴ molecules
  • 0.540 mol CCl₄ * 6.023x10²³ molecules/mol = 3.25x10²³ molecules
  • 0.106 mol C₆H₁₂O₆ * 6.023x10²³ molecules/mol = 6.38x10²² molecules
3 0
3 years ago
During a skin burn from an oven, approximate the skin and tissue layer to be infinitely thick compared to the damaged layer. The
Vlad [161]

Answer:

The depth of the damage is given as x   = 1.357*10^{-3}m

Explanation:

From Fick's second law

                 \frac{C_{x}-C_{0}}{C_{s}-C_{0}} = 1 -erf [\frac{x}{2\sqrt{Dt} } ] ...(1)

Where

 C_x is the temperature when the skin is damage

 C_0 is the initial temperature of the skin

  Cs is the temperature of the oven

 erf is a mathematical function known as error function

  D is the thermal diffusivity

 x is the depth of the damage

From the question we are given that

            C_x  = 62°C

           C_0   = 33°C

            D   =  2.5 * 10^{-7} m^2/s.

Substituting values into equation one

                    \frac{62-33}{200-33} = 1 -erf [\frac{x}{2\sqrt{2.5*10^{-7}} *2} ]

                  erf[\frac{x}{1.414*10^{-3}} ] = 0.826\\

       Let assume that  z =\frac{x}{1.414*10^{-3}} ...  (2)

Hence

           erf(z) = 0.826

Looking at the table of error function shown on the first uploaded image

 We can use interpolation to obtain the value of z in this manner

                  \frac{z-0.95}{0.8260-0.8209}  = 1        

                     z = 0.96

 Substituting the value of z into equation 2

           0.96 = \frac{x}{1.414*10^{-3}}

             x   = 1.357*10^{-3}m

               

 

5 0
3 years ago
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