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valentina_108 [34]
3 years ago
14

Which of the following can’t be separated into simpler substances or converted into another substance by chemical processes

Chemistry
1 answer:
notsponge [240]3 years ago
4 0
Elements are the simplest form of matter
You might be interested in
State of matter
Nina [5.8K]

Answer:

H₂

Explanation:

To solve this question we must find, as first, find the molar mass of the homonuclear diatomic gas using Graham's law. With the molar mass we can identify this gas

<em>Graham's law:</em>

\frac{V_a}{V_b} =\sqrt{\frac{m_B}{m_A} }

<em>Where V is the speed of the gases and m the molar mass of those:</em>

<em>As Va is 3.98 times Vb (And mB is molar mass of oxygen gas = 32g/mol)</em>

3.98 =\sqrt{\frac{32g/mol}{m_A} }

15.84 = 32g/mol / mA

mA = 2.02g/mol

As is a homonuclear diatomic gas, the molar mass of the atom is 1.01g/mol. Thus, the gas is:

<h3>H₂</h3>
4 0
3 years ago
What causes an increase in the reaction rate between molecules
Anestetic [448]
 molecules collide more frequently.

Chemical reaction mechanisms are based in the collision of molecules with certaing level of energy. More collisions implies grater probablity of reaction.
8 0
3 years ago
Read 2 more answers
What is abbreviated structural formula of the 2-metil-5-isopropiloctan?​
Alja [10]

Answer:

            CH3

            |

CH3-    C H  -CH2-CH2-      CH   - CH2-CH2-CH3

                                              |

                                              CH

                                           /     \

                                         CH3  CH3

Explanation:

Octan

C-C-C-C-C-C-C-C

Metyl

CH3 -

Isopropyl

     CH3

    /

- CH

   \

     CH3

2-metil-5-isopropiloctan

           CH3

            |

CH3-    C H  -CH2-CH2-      CH   - CH2-CH2-CH3

                                              |

                                              CH

                                           /     \

                                         CH3  CH3

                           

8 0
4 years ago
How many atoms of helium are required to equalise the<br>mass of a silver atom ?​
erica [24]

Answer:                 i iii i i i ii i i ir r            

q q  q q q q q q  q q q q q  q q q q q q  q q q q  q q  q q  q  q q  q q q

7 0
3 years ago
What types of elements are shown in the polyatomic ions in model 1?
boyakko [2]
These ions are disjoint by the charge on the ion into four dissimilar tables and listed alphabetically within each table. Each polyatomic ion, has it called, chemical, formula, two dimensional drawing, and three dimensional representation are given.
The three dimensional buildings are drawn as CPK models. CPK structures represent the atoms as sphere, where the radius of the sphere is equal to the van der waals radius of the atom; these buildings give a measure up the volume of the polyatomic atom.
4 0
4 years ago
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