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The general rule is that "être" is used as the auxiliary verb in the past tense for verbs of movement and which are intransitive, i.e. cannot be followed by an object without a prepositi...
1/6 - we can split 36^(-1/2) into 36^(-1*1/2) this way we can apply what we know about basic power rules to split up the problem into more familiar chunks.x^(1/2) means we take the square root of x and x^...
Silicon dioxide (SiO2) has a macromolecular structure. This means that it forms thousands of covalent bonds between its silicon and oxygen subunits. Sulphur trioxide (SO3), meanwhile, has a simple covalen...
One anomalous property of water is that when in its solid phase (ice) it is less dense than when it's in its liquid phase. This arises because of the hydrogen bonding network that exists between water mol...
This is a process that occurs on the membrane of the mitochondria. Here the electrons are passed from one electron carrier to the next in a chain know as the electron transport chain. With each carrier be...
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