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In english 'ser' and 'estar' are both translated as 'to be', but are used differently. 'Ser' is used when when it's a permanent reality, for scenarios that are always true and don't depend on any circumst...
The wave of excitation originates in the sinoatrial node in the right atrium. From there, it travels through the right and left atria, causing contraction of the atria (atrial systole). It is prevented fr...
There are 3 Steps to answering this question:But first you need to understand what is meant by empirical formula:The simplest whole number ratio of the atoms of each element present i...
'quello' is a masculine name used to indicate something far'quella' has the same use but it is used for feminine nouns
(x + 1)/((x^2)*(2x – 1)) = -3/x - 1/x^2 + 6/(2x-1)
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