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Arturiano [62]
3 years ago
13

What is the correct name for Na2CO3

Chemistry
2 answers:
Elan Coil [88]3 years ago
8 0

Answer:

Sodium Carbonate

Explanation:

Also known as washing soda/sodium ash. A inorganic compound. All forms are white, water soluble salts.

KatRina [158]3 years ago
6 0

Answer:

Sodium carbonate

Explanation:

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Chemistry what is stoichiometry and the different formulas
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How could you safely determine if a base is stronger than an acid?
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Since tasting or touching the texture or surface could be deemed unsafe. It would be best to use a pH meter or litmus paper. pH meter will accurately determine pH. Litmus paper if red will be acidic and basic if blue. You can also perform conductivity test. Else, you can also perform hydrogen test.
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The rate constant k for a certain reaction is measured at two different temperatures:
bogdanovich [222]

Answer:

Ea=5.5 Kcal/mole

Explanation:

Let rate constant are K_1  and K_2  at temperature T_1  and T_2

By using Arrhenius equation at two different two different temperature,

Log K_1/K_2 =E_a/2.303R*(1/T_2 -1/T_2 );T_1=273+376=649K  ;K_1=4.8*10^8;T_2=273+280=553K  ;K_2=2.3*10^8;R=2 cal/(mole.K);Log (4.8*10^8)/(2.3*10^8 )=E_a/2.303R*(1/553K-1/649); Log 4.8/2.3=E_a/2.303R*96/358897 ;0.32=E_a/2.303R*96/358897;E_a=(0.32*2.303R*358897)/96;  

By putting value of R=2 cal/mole.K

E_a=5510.265cal/mole;

By rounding off upto 2 significant figure;

E_a=5.5Kcal/mole;

8 0
3 years ago
The graphic shows nutrient loss in millions of metric tons per year in the United States.
tia_tia [17]

Annually 126.0 million metric tons of soil nutrients are lost.                            

<u>Explanation</u>:

  • By the given data we can identify the loss of soil nutrients in the United States. In the first year, a total of 1.0 million soil nutrients are lost.
  • After that in the second year, the loss has doubled. 10.0 million metric tons of soil nutrients are lost.
  • In the third year, 16.0 million soil nutrients are lost in the US.
  • In the final year, 90.0 million soil nutrients are lost. It is a very huge loss. By calculating all the above , a total 126.0 million of soil nutrients in the US are lost annually.                                

3 0
3 years ago
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