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Give the names of three commonly known types of subatomic particles along with their charge and relative masses. In the basic model of the atomic structure, where would one find each of these particles?

The three subatomic particles are electrons, protons and neutrons. Protons are positively charged and have a relative mass of 1 whilst neutrons are neutral in charge and also have a positive charge of 1. ...

Answered by Matthew H. • Chemistry tutor

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Which are the strongest interactions between molecules

Hydrogen bonds are the strongest, which are possible only between H and F, O or N because of the difference in electronegativity; then, permanent dipole-permanent dipole interactions come second as they f...

Answered by Eduardo B. • Chemistry tutor

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Calculate the number of moles in a sample of 113.47g of Ca(HCO3)2.

Using the AQA specimen data sheet we see that the RAMs of the following elements areCa = 40.1H = 1.0C = 12.0O = 16.0Therefore the total mass for one mole isCa + 2x(H + C + O+O+O)= 40.1 + 2x(1+12+16+16+16)...

Answered by Jacob L. • Chemistry tutor

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What is the Van der Waals force and where would you see its effects?

The Van der Waals force is the weakest of all the intermolecular forces. This interaction occurs between every molecule, over very small distances, and becomes weaker the further away the two molecules ar...

Answered by Ketan C. • Chemistry tutor

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What is the ideal gas equation and what relationships can we derive from it?

The ideal gas equation is given by pV = nRT, where p is pressure of the gas, V = volume, n = molar amount, T = temperature (in Kelvin!) and R is the gas constant which is given by 8.31 J / (K*mol). From t...

Answered by Ketan C. • Chemistry tutor

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