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How do I work out the formula of ionic and covalent compounds?

First, ionic compounds form bonds by transferring electrons from their outer shell. Covalent compounds form bonds by sharing electrons within their outer shell. The number of electrons in the outer shell ...

MB
2758 Views

Please could you explain the Ontological argument with Kant's counterargument?

Anselm's Ontological argument is a bit different to the other main arguments for God's existence (as well as a bit more complicated), being A Priori, rather than A Posteriori. Here, Anselm tries to prove ...

JW
3753 Views

Solve the equation 6x^2 + 17x - 39 = 0

Using the quadratic equation with a = 6, b = 17 and c = -39, x is found to be 1.5 or -4.33

SE
Answered by Sian E. Maths tutor
4132 Views

Given that y = 5x^4 + 3x^3 + 2x + 5, find dy/dx

We’re being asked to differentiate the function with respect to x. To do so, we use the general formula for differentiation, which is:‘If y = kxn, dy/dx = nkx(n-1)We must also note that, ...

HP
Answered by Harry P. Maths tutor
3433 Views

When do you use "être" and when "avoir" to form the past perfect in French?

The general rule is that "être" is used as the auxiliary verb in the past tense for verbs of movement and which are intransitive, i.e. cannot be followed by an object without a prepositi...

MA
Answered by Michael A. French tutor
1645 Views

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