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sergeinik [125]
4 years ago
9

The first system of classification of organisms was developed by?

Chemistry
2 answers:
shepuryov [24]4 years ago
6 0

Answer:

2. Linnaeus

Explanation:

I took the test

Margarita [4]4 years ago
5 0

its the second one alright

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What do the symbols in parenthesis indicate? C7H16 (l) + 11O2 (g) 7CO2 (g) + 8H2O (l) the physical state of each reactant and pr
Vadim26 [7]
The symbols indicate the physical state of each reactant
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3 years ago
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Which is more reactive C, O, CL​
solniwko [45]

Oxygen(O)

Explanation:

Oxygen is the most reactive of all the listed elements. One can determine their reactivities based on the electronegativity values.

  • Every element combines with one another to attain stability like the noble gases.
  • Electronegativity is the relative ease with which the atoms of elements attracts valence electrons in a chemical bond.
  • On the pauling's electronegativities table of elements, carbon is 2.5, oxygen 3.5 and Cl is 3.0
  • Oxygen will have the highest reactivity and the most tendency to combine with other atoms.

Learn more:

Electronegativity brainly.com/question/11932624

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7 0
4 years ago
PLEASE HELP! IDK THIS ONE..
Juliette [100K]

Answer:

C

Explanation:

O2 is a gas and gas has spread out molecules compared to the other states of matter. As such, liquid and solids have stronger intermolecular forces. Since dioxygen is the only gas in the possible answers, O2 has the weakest intermolecular force.

3 0
3 years ago
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What is CO2 nomenclature
Yanka [14]
Are you looking for the definition or answer? Since nomenclature is just definition by name or giving a specific name; the overall answer should be Carbon Dioxide.
3 0
4 years ago
calculate the mass of HNO3 obtained when 20.0g of KNO3 reacts completely with excess concentrated H2SO4
iragen [17]

The mass of HNO3 obtained is 12.46 g from the given reaction.

The chemical reaction is :

Potassium Nitrate + Sulphuric acid ------> Potassium Bisulphate + Nitric acid.

The above reaction is basically used for the making of nitric acid.

Less than 200 degree celcius the Nitric acid if more than 200 degree celcius then it will form Potassium Sulphate.

Now,

1 mol of KNO3 reacts with1 mol of concentrated H2SO4 to give 1 mol HNO3

Molar Mass of KNO3 = 101.1 g

Molar mass of H2SO4 = 98.07 g

Mass of H2SO4 that can react with 20 g of KNO3 = (20 g* 98.07 g )/ 101.1 g

= 19.4 g

Molar mass of nitric acid= 63.01 g

Hence mass of nitric acid  produced by 20 g of KNO3 = (20 g * 63.01 g ) / 101.1 g = 12.46 g

To know more about Nitric acid here :

brainly.com/question/20934865?referrer=searchResults

#SPJ1

8 0
1 year ago
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