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Explain why the reactivity of Group 2 elements increases down the group.

Moving down Group 2, the atomic radius increases as there are more electron shells. This also means that the outermost electrons are more shielded from the positive charge of the nucleus. This decreases the ...
JC
Answered by Joe C. • Chemistry tutor
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Describe the Cardiac Cycle

The Cardiac Cycle can be split into three stages: Diastole, Atrial Systole, and Ventricular Systole. (Left side of heart used for example purposes). Atrial Systole: Blood enters the atrium via the pulmonary ...
AM
Answered by Angus M. • Biology tutor
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Translate this passage into English. "Mañana por la tarde, un club de rugby argentino abrirá sus puertas al primer equipo femenino."

Tomorrow afternoon, an Argentine rugby club will open its doors to the first women's team.
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Answered by Nikolay P. • Spanish tutor
2323 Views

How do I start writing an essay?

Before you start writing, you need a clear idea of what you are arguing for. First, look at the question and just try to answer it in your own head, or on paper if you like, in the most basic terms you can. ...
JR
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Find the derivative of sin(x)/x^3 with respect to x

First, bring the x to the numerator (top) as x^(-3). Then use the chain rule: State the first times derivative of the second plus state the second times the derivative of the first.State sin(x), then multipl...
TD
Answered by Tutor170145 D. • Maths tutor
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