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elena-s [515]
4 years ago
8

Why We Write Chlorine As Cl2 Not As Cl

Chemistry
2 answers:
Law Incorporation [45]4 years ago
4 0
We write chlorine as CL2 because chlorine is a non metallic gas . Also as chlorine is a gas it occurs in diatomic form as cl2 such as hydrogen(h2).
Afina-wow [57]4 years ago
4 0
Because is non metallic glass
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How many moles of sf6 are there in 459500000000000000 molecules of sf6
Vlada [557]

Answer : The number of moles of SF_6 is, 7.63\times 10^{-7} moles.

Solution :

As we know that,

1 mole contains 6.022\times 10^{23} number of molecules

As, 6.022\times 10^{23} number of molecules of SF_6 are present in 1 mole of SF_6

So, 4595\times 10^{14} number of molecules of SF_6 are present in \frac{4595\times 10^{14}}{6.022\times 10^{23}}=7.63\times 10^{-7} moles of SF_6

Therefore, the number of moles of SF_6 is, 7.63\times 10^{-7} moles.

5 0
3 years ago
Completion
Snowcat [4.5K]

Answer:

  1. Compress
  2. Fixed
  3. Melts
  4. Melting Point
  5. Freezing Point
  6. High
  7. Crystalline
  8. Lattice
  9. Unit cell
  10. Amorphous solids

Explanation:

Solids tend to be dense and difficult to <u>compress.</u>

They do not  flow or take the shape of their containers, like liquids do, because  the particles in solids vibrate around <u>fixed</u> points.

When a solid  is heated until its particles vibrate so rapidly that they are no longer  held in fixed positions, the solid <u>melts</u>.  

<u>Melting point</u> is the  temperature at which a solid changes to a liquid. The melting and <u>freezing point</u>  of a substance are at the same temperature.

In general,  ionic solids tend to have relatively <u>high</u>  melting points, while  molecular solids tend to have relatively low melting points.

Most  solids are <u>crystalline</u>

The particles are arranged in a pattern known  as a crystal <u>lattice</u>

The smallest subunit of a crystal lattice is the <u>unit cell</u>  

Some solids lack an ordered internal structure   and are called <u>amorphous solids.</u>

7 0
3 years ago
What is a mixture called when it has its different components mixed evenly within the substance? Heterogeneous mixture Homogeneo
larisa86 [58]
It would be considered a Homogeneous Mixture. A mixture with two or more components mixed evenly is a Homogeneous mixture.

3 0
4 years ago
Read 2 more answers
Given the propane molecule C3H8(g)! a) What is the balanced equation for the combustion of propane in O2?(20 pts.) b) What is th
lubasha [3.4K]

Answer:

The answer to your question is below

Explanation:

Propane = C₃H₈

Process

1.- Write the chemical reaction

                     C₃H₈  +  O₂   ⇒   CO₂  +  H₂O

balanced chemical reaction

                      C₃H₈  +  5O₂   ⇒  3CO₂  +  4H₂O

               Reactants      Elements     Products

                      3                    C                  3

                      8                    H                  8

                     10                    O                 10

b) Standard enthalpy

Propane                  -104.7 kJ/mol

Oxygen                         0   kJ/mol

Carbon dioxide      -393.5 kJ/mol

Water                      -241.8 kJ/mol

ΔH° = ∑ΔH° products - ∑H° reactants

ΔH° = 3(-393.5) + 4(-241.8) - [(-104.7) + 0]

-Simplification

ΔH° = -1180.5 kJ/mol - 967.2 kJ/mol + 104.7 kJ/mol

ΔH° = - 2042.5 kJ/mol

This reaction is exothermic because ΔH° is negative.

4 0
3 years ago
In _, Solon was chosen as an Athenian statesman with reformation powers.
NeX [460]
594 B.C.E.

In 594 B.C.E., Solon was chosen as an Athenian statesman with reformation powers.
3 0
3 years ago
Read 2 more answers
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