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What observations would I expect to make if I dropped from magnesium into some hydrochloric acid? What is the balanced chemical equation?

Effervescence and the magnesium metal would dissolve. Mg + 2HCl --> MgCl2 + H2

OW
Answered by Ollie W. Chemistry tutor
3391 Views

What are the major similarities between oxidative phosphorylation and non-cyclic photophosphorylation?

In terms of similarities, both processes involve generating a proton electrochemical gradient across a membrane, by pumping protons from an area of lower concentration to a higher concentration. This crea...

OW
Answered by Ollie W. Biology tutor
35897 Views

How do I sketch a polynomial function?

Before you start it is best to gather as much information as you can about the function. The most important things to find are any roots - as these will tell where the graph should cross the axis - and th...

JL
Answered by Julu L. Maths tutor
4368 Views

A car of mass 800 kg is accelerated horizontally by constant net force of 1920 N for 9 s. It then breaks for 2 s, but drives off a 5 m high cliff. If μ = 0.85, what is the total horizontal distance travelled by car and its velocity? Ignore air resistance.

F=ma, so a=F/m giving a=2.4m/s^2. When t=9s, v=at, so v=21.6m/s. Friction force is Ff = μF(normal), which is Ff = μmg, so Ff = 6670.8N (if g = 9.81m/s^2). Frictional force always acts against the directio...

MK
Answered by Martin K. Physics tutor
2709 Views

Why did the Red Army win the Russian Civil War?

The Red Army won due to a mixture of their strengths and the Whites' incompetence. Trotsky was a great leader and had an effective military strategy - by contrast, the Whites were disorganised and had poo...

CW
Answered by Catherine W. History tutor
7543 Views

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