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agasfer [191]
3 years ago
5

Write a balanced chemical equation for the combustion of C6H12O6 in oxyegen gas

Chemistry
1 answer:
Anestetic [448]3 years ago
3 0

C6H12O6 (s) + 6O2 (g) + 6CO2 (g) + 6H2O(l)

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Describe the properties of oobleck when it behaves like a solid and a liquid.
PSYCHO15rus [73]

Answer:

hope it's help you ok have a good day

7 0
2 years ago
How many atoms of nitrogen and oxygen are present in a molecule of dinitrogen pentoxide?
Kitty [74]

Answer: 7

Explanation: oxygen has 5 atoms and nitrogen has 2. Put them together and you get 7

6 0
3 years ago
Read 2 more answers
3. Crystalline structural unit of barium metal is a body-centered cubic cell. The edge length of the unit cell is 5.02x10-8 cm.
tiny-mole [99]

Answer:

The Avogadro's  number is N_A     =  6.02289 *10^{23}

Explanation:

From the question we are told that

   The edge length is  L   = 5.02 * 10^{-8} \ cm= \frac{5.02 * 10^{-8} }{100}  =  5.02 * 10^{-10}

    The density of the metal is \rho =  5.30\ g/cm^3 = 5.30 * \frac{g}{cm^3}  * \frac{1*10^6}{1*10^3} = 5.30 *10^3kg/m^3

     The molar mass of  Ba is  Z  =  137.3 \ g/mol = \frac{137.3}{1000} =  0.1373 \  kg / mol

     

Generally the volume of a unit cell is  

       V =  L^3

substituting value

        V =  [5.02 *10^{-10}]^3

         V = 1.265*10^{-28}\ m^3  

From the question we are told that 68% of the unit cell is occupied by Ba atoms and that the structure is a metal which implies that the crystalline structure will be  (BCC),

The volume of barium atom is  

        V_a  =  \frac{V}{2}  * 0.68

substituting value

        V_a  =  \frac{ 1.265*10^{-28}}{2}  * 0.68

        V_a  = 4.301 *10^{-29} \ m^3

The Molar mass of barium is mathematically represented as

      Z  =  N_A V_a *  \rho

Where N_A is the Avogadro's number

 So  

      N_A     =   \frac{ Z}{ V_a *  \rho}

substituting value

     N_A     =   \frac{ 0.1373}{ 4.301*10^{-29} *  5.3*10^{3}}

     N_A     =  6.02289 *10^{23}

4 0
2 years ago
Man's scientific theories are often in correct because his knowledge is​
Alik [6]

Answer:

Incomplete  

Explanation:

I wouldn't say that a scientific theory is wrong.

It is the best we have at the time, based on all available knowledge .

As each new discovery is made, scientists modify the theory to fit the new knowledge.

The scientific method is a never-ending process.

8 0
2 years ago
What are compounds that react with acids and bases to make certain colors?
finlep [7]
Those would be called indicators , simply google them and you should find many. I'll leave some examples "bromophenol blue"  "Methyl red" and "phenol red".
4 0
3 years ago
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