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An atom of hydrogen contains 1 proton, 1 electron and 0 neutrons. When hydrogen loses an electron to become H+ only a proton remains. We can work out the number of neutrons an atom has by deducting the atomi...

First can you tell me what kind of reaction is this reaction? Thermal decomposition Secondly can you tell me the products of this reaction and have a go writing the formulae? CaCO 3 -> CaO + CO 2

There are two main reasons that smoking can increase blood pressure: Cigarette smoke contains nicotine which, once inhaled, can enter the bloodstream and cause the release of adrenaline which increases the h...

In answering this question, a few things must be taken into consideration. FIrstly, the question clearly asks for the advantages of being a sole trader. This means that any time wasted in explaining a disadv...

First we rearrange the equation y + 4 x = 7 to y = −4 x + 7 So we can see that the gradient of this equation is −4. Since the line we are looking for is parallel, it must have the same gradient, −4. So now w...