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Balance the following equation showing complete combustion of a hydrocarbon: C3H8 + O2 --> CO2 +H2O

First, we can look at the number of hydrogens on either side. The equation shows 8 hydrogen atoms on the left hand side (in C3H8) whereas on the right hand side, we have 2 hydrogen atoms (in H2O). So we n...

TA
Answered by Tahmina A. Chemistry tutor
26406 Views

How should I structure and plan a Section B question? (Edexcel)

With the Section B questions you will be asked to engage with a set of sources that are related to a historical debate relevant to your course. Before jumping straight into answering the question though y...

CM
Answered by Charlie M. History tutor
13800 Views

Why do you use the subjunctive after 'quiero que'?

It should be said that it is not always trigged by that construction, since the subjunctive only follows this clause if there is a change in subject (i.e. quiero que tu hagas/usted haga/él haga/ella haga/...

ZL
Answered by Zac L. Spanish tutor
3182 Views

What do you do if there is a subjunctive trigger that is followed by the imperfect tense?

There is in fact an imperfect subjunctive, however it is rarely used and can only normally be found in technical pieces of literature or criticism. As a result, the present subjunctive is what would be ne...

ZL
Answered by Zac L. French tutor
2487 Views

What idiomatic expressions can be useful in my controlled assessment?

'De todas maneras' is commonly used by native speakers, and most useful since you can always use it when you want to talk about something new. Other noteworthy expressions include: "Tonto/a de remate...

ZL
Answered by Zac L. Spanish tutor
2804 Views

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