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What are the 3 main types of chemical bonding? Give definitions of them.

IonicCovalentMetallic
Ionic bonding The electrostatic attraction between positive and negative ions
Covalent bonding Electrostatic attraction between a shared pair of electrons and the nuclei <...

Answered by • Chemistry tutor

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How does the reflex arc work without going to the brain?

The reflex arc is designed for quick, reactive movements that are instinctive. E.g. when we touch a hot pan, we need to react quickly otherwise our hand will get really badly burned. If the signal went fr...

Answered by Armaan G. • Biology tutor

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List simple experimental tests to determine if either Hydrogen, Oxygen, Chlorine or Carbon Dioxide gas was produced in a reaction. State conditions and expected positive results for each

Presence of:H₂: Squeaky Pop Test: use a lit split to light a small sample of gas in a test tube. If Hydrogen, then a Squeaky pop will occur. O₂: Glowing Splint Test: Add a still glow...

Answered by Daniel S. • Chemistry tutor

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How do I write or structure my personal statement in a balanced way when I am interested or taking more than one course?

Although it would be quite helpful if these courses that are taken together are related to each other, whether or not two or three courses are related, an effective personal statement must give balance to...

Answered by Dylan A. • Personal Statements tutor

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A diver of mass 60kg stands on the end of a diving board of length 2m from the pivot point. Calculate the upward force exerted on the retaining spring 30cm from the pivot point.

This question is asking about forces acting around a pivot point, so we can use the formula for the moment M = F*D about the pivot point. The clockwise and anticlockwise moments around the pivot must be e...

Answered by Louis G. • Physics tutor

8248 Views