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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 (...

Answered by Edgar K. • Chemistry tutor

4606 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 Weh...

Answered by Olivia B. • History tutor

11140 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 WE...

Answered by Ria C. • Spanish tutor

2163 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

Answered by Mustafa Q. • Maths tutor

4536 Views

What is a Pacinian corpuscle and how does it work?

The Pacinian corpuscle is a mechanoreceptor, which means it is a sensory receptor that responds to touch, pressure or vibration. Pacinian corpuscles are found deep in the skin, and respond to both pressur...

Answered by • Biology tutor

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