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Chemistry
A Level

How does Le Chatelier's Principle allow you to predict the change of the position of equilibrium for an equilibrium reaction?

Le Chatelier's principle states that the position of equilibrium will shift to oppose the change of conditions to a system. For example, if the temperature is increased the position of equilibrium will sh...

Answered by Federico C. Chemistry tutor
1532 Views

Describe the structure of silicon dioxide

A giant macromolecular covalent structure with a high melting point and covalent intramolecular bonds between all atoms.

Answered by Rohan K. Chemistry tutor
2998 Views

What is the oxidation state of chlorine (Cl) in HClO?

The oxidation state of O is -2, and +1 for H, so as HClO is neutral overall, the oxidation state of Cl in HClO is +1.

Answered by Ishan J. Chemistry tutor
29564 Views

When going down group 1 on the periodic table, what happens to reactivity?

As you go down the group:shielding increases as electron numbers increase, this means that the distance between the nucleus and outer electron is further and attraction is weaker between the positive nucl...

Answered by Sanjni B. Chemistry tutor
2499 Views

Why is the first ionisation energy of barium larger than the first ionsiation energy of caesium?

Barium has one more proton than caesium. The outer electrons of both elements are in the same shell so they feel the same shielding effect. However, as barium has one more proton, barium's outer electrons...

Answered by Jeremy L. Chemistry tutor
5039 Views

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