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How do I balance the chemical equation: C2H4 + O2 --> CO2 +H2O

First take a look at the equation and see how many elements there are, in this case we have 3 different elements; Carbon, Hydrogen and Oxygen. To balance the equation start off by balancing the elements in t...
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Answered by Andrei P. • Chemistry tutor
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What is the difference between current and voltage?

Current and voltage are closely related properties of a circuit, one is caused by the other. What we refer to as voltage is in reality just a difference in charges, so, a difference in the amount of electron...
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Answered by Brian C. • Physics tutor
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y=mx+c. If m=5, x= -3 and c=1, find y

First off multiply m and x together. This is -3*5 = -15. Next, add c to the previous result, so -15+1=-14. This gives y=-14
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Answered by Kamaal K. • Maths tutor
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Can you explain what the stages of a reflex action are; for example what actually happens when you touch a hot object?

Firstly, the whole point of a reflex is to create a QUICK reaction to a STIMULUS. So, the first stage of a reflex is SENSATION - i.e when you first touch the hot object the receptors in the skin will sense t...
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Answered by Kinari P. • Biology tutor
11828 Views

Whats the difference between an ionic bond and a covalent bond?

In an ionic bond, the bond is due to electrostatic attraction between the two ions. In a covalent bond the bond is formed due to the sharing of electrons between the bonding atoms.
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