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ser has the following uses:1.To describe qualities of a person. E.g. Soy muy alta.2.For characteristics. E.g. Ella es muy tímida3.Time. E.g. Son las ocho.4.Occupations. E.g. Mi hermana es cantante6.Relati...
The first step in solving this problem is to identify that it is an integral that needs to be solved by parts. When you see an integral, check if it is in the form uv, where u and v are both functions...
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...
So firstly, we assume that the oxygen is in excess (i.e. the amount of oxygen reacting won't limit the amount of carbon that can react), so we know that exactly 3 moles of carbon will be burnt. Then, from...
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