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olga_2 [115]
3 years ago
6

i need help with these. its balancing. the blank spaces are where u put the numbers. and the stuff on the sidd is how u show wor

k. i got lost and dont know what comes next​

Chemistry
1 answer:
zlopas [31]3 years ago
7 0
7. 1,2,2,2
8. 4,3,1
9. 1,4,1,2
10. 3,4,1,4
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Explain Charles law <br>​
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The Charles law explains that "volume of an ideal gas at constant pressure is directly proportional to the absolute temperature."

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Which statement best describes the structure of covalent network solids? A. They are giant structures held together by weak forc
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Answer: Option (B) is the correct answer.

Explanation:

A covalent compound is a compound formed by sharing of electrons. And, in a covalent network solid atoms are bonded by covalent bonds in a continuous network that is extending throughout the material or solid.

This continuous arrangement of atoms are like a lattice.

For example, diamond is a covalent network solid in which carbon atoms are arranged in a continuous lattice like structure.

Hence, we can conclude that the statement all the atoms are covalently bonded to other atoms to form a lattice-like structure, best describes the structure of covalent network solids.

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3 years ago
It takes 281.7 kJ of energy to remove 1 mole of electrons from the atoms on the surface of lithium metal. If lithium metal is ir
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Answer:

The maximum kinetic energy of electron is = 2.93 × 10^{-19} Joule

Explanation:

We know that total energy

E = \frac{hc}{\lambda}  ------------ (1)

Here h = plank's constant = 6.62 × 10^{-34} J s

c = speed of light = 3 × 10^{8} \frac{m}{s}

\lambda = 261 nm = 261  × 10^{-9} m

Put all these values in equation (1) we get

E = 7.6   × 10^{-19} J

We know that

Total energy = Energy to remove an electron + K.E of electron

Energy to remove an electron = \frac{281.7 (1000)}{(6.023)10^{23} }

Energy to remove an electron = 4.67  × 10^{-19} J

K.E of electron = Total energy - Energy to remove an electron

K.E of electron = 7.6   × 10^{-19} -  4.67  × 10^{-19}

K.E of electron = 2.93 × 10^{-19} Joule

Therefore the maximum kinetic energy of electron is = 2.93 × 10^{-19} Joule

3 0
4 years ago
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Answer:

d. there are no conditions for this correlation.

Explanation: Dispersal of matter is a term used to describe the various processes and activities involved in the transfer of materials from one location to another.

The spontaneity of a process tries to explain that a process will continue to occur when an initial force has been applied, it doesn't require the continous input of energy for it to continue to take place.

7 0
3 years ago
WHAT IS A ELECTROLYTE?THIS IS FOR MY PRESENTATION
Alexxx [7]

Answer:

Explanation:

substance (as an acid or salt) that when dissolved (as in water) conducts an electric current.

6 0
4 years ago
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