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Chemistry
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Describe the structure of silicon dioxide

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

RK
Answered by Rohan K. Chemistry tutor
3051 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.

IJ
Answered by Ishan J. Chemistry tutor
30358 Views

What is Le Chatelier's principle and why is it important?

Le Chatelier's principle states, that when a system that is in equilibrium is subject to a change of concentration, volume, pressure or temperature, the equilibrium will shift to counteract this change. T...

IH
3972 Views

0.0960g of Magnesium was reacted with 25cm^3 of HCL of 0.4mol/dm^3 concentration. Calculate the moles of each one and determine which one is in excess

Equations to usemoles = mass/Mrmoles= concentration*volumeAr of Magnesium = 12 Moles= 0.096/12 Moles=0.008Moles of HCL = 25/1000 x 0.4=0.1Therefore HCL is in excess

TG
Answered by Tom G. Chemistry tutor
3787 Views

Sodium’s atomic number is 11 and its mass number is 23. How many protons, electrons and neutrons does it have?

The mass number defines the number of protons and neutrons in an atom. The atomic number shows the number of protons in an atom (nucleus). Because there is the same number of protons as e...

CM
51294 Views

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