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svp [43]
3 years ago
8

Chemical reactions in which large molecules are built from small molecules are classified as ______ reactions. In contrast, ____

__ reactions involve breaking large molecules down into smaller ones.
Chemistry
1 answer:
Luda [366]3 years ago
6 0
<h2>Exothermic and Endothermic Reaction</h2>

Explanation:

  • Chemical reactions in which large molecules are built from small molecules are classified as exothermic reactions. During these reactions, a huge amount of energy is released.
  • When bonds are formed to attain its stability there is the loss of energy as heat energy.  
  • In contrast, Endothermic reactions involve breaking large molecules down into smaller ones. During this reaction, a large amount of energy is involved.
  • When bonds break to attain its stability there is gain of energy.
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Is Boyle's law universally true? if not mention one of the its limitations​
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2 years ago
State the location and the total charge of the protons in a Ni-64 atom.
blsea [12.9K]
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6 0
3 years ago
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Write the full ground state electron configuration of C − C− . electron configuration: Which neutral atom is isoelectronic with
stepan [7]

Answer: 1. Is2 2s2 2p3

2. Nitrogen

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But an extra electron is added since the charge on C is -1, this therefore makes the total electron 7.

1. By arrangement, the Electronic configuration is therefore;

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7 0
3 years ago
PLZ HELP!!!!!!!!!!!!!
gregori [183]

117.22 g are needed to react with an excess of Fe2O3 to produce 156.2 g of Fe.

Explanation:

                  Moles of Fe = Mass of Fe in grams / Atomic weight of Fe

                                        = 156.2 / 55.847

                  Moles of Fe  = 2.79.

The ratio between CO and Fe id 3 : 2.

                  Moles CO needed  = 2.79 * (3 / 2)

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 To calculate Atomic weight of CO,

                  Atomic weight of carbon = 12.011

                  Atomic weight of oxygen= 15.9994

        Atomic weight of CO = 12.011 + 15.9994 = 28.01 g / mol.

                 Mass of CO   = 4.185 * 28.01 = 117.22 g.      

5 0
3 years ago
Compare and contrast the functions of each of the following types of flasks: filter, Erlenmeyer, volumetric.
harkovskaia [24]
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4 0
3 years ago
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