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First, we factorize each number.150=(5^2)32 and 100=(2^2)*(5^2) then to calculate the highest common factor we take the common factors with the smallest powers. In this case (5^2) and 2. That mea...

You have a total of £385 to split to Charlie, Ben and Sarah in the ratio of 1:2:4. First, I ask myself how many parts am I splitting the £385 into?From the ratio, I know the total number of parts = 1 + 2 ...

First, you find the infinitive form of the verb. This is the form you find in the dictionary. In English, this is the 'to' form of the verb e.g. to live, to work, to eat. Then, you see if the verb ends in...

Electrons are transferred from potassium to sulfur. Two potassium atoms each lose one electron, and one sulfur atom gains both of the electrons lost by the potassium atoms. This results in K⁺ i...

This is due to the metal in the powder form having a larger surface area. There are 4 ways to increase the rate of reaction. Increasing the concentration of the reactants, increasing the temperature, addi...