Top answers

Rank the following acids according to acid strength, strongest to weakest: HF, HCl, HBr. Explain your reasoning.

Answer: HBr, HCl, HF Firstly, we must understand what is meant by "acid strength". Simply put, it's the concentration of "free" hydrogen ions (H+) in solution. Acids dissociate (liberate ...
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Answered by Edgar K. • Chemistry tutor
4851 Views

Reading paper: Your little brother has received a message from his French pen friend and he has asked you to translate it into English for him. Translate the following into English.

(Question continued) Sentences to translate for higher tier: Récemment, j’ai décidé de prendre une année sabbatique après le lycée puisque je voudrais avoir un peu de liberté. J'étudie des langues vivantes, ...
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Answered by Lizzie P. • French tutor
3242 Views

“Stalin’s leadership was the most significant reason for the Soviet victory over Germany in the 1941-45 war.” Assess the validity of this view.

While many complex and intertwining factors including the Soviet economy, German mistakes, Lend-Lease aid and the determination of the Soviet people arguably all contributed to Soviet victory over the Wehrma...
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Answered by Olivia B. • History tutor
11761 Views

How do you form the present subjunctive in Spanish and what is it used for?

Use the 'yo' form of the present indicative and drop 'o' ending and add these endings:-ar verbs: e,es, e, emos, éis, en-er and -irverbs: a, as, a, amos, áis, anThe uses can be summarised in the acronym WEIRD...
RC
Answered by Ria C. • Spanish tutor
2248 Views

Solve the simultaneous equations y+4x+1 = 0 and y^2+5x^2+2x = 0

x = -1/3 and y = 1/3 or x = -1/7 and y = -3/7
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Answered by Mustafa Q. • Maths tutor
4662 Views