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Problems with detailed solutions on displacement and distance of moving objects. Problem 1. An object moves from point A to point B to point C, then back to point B and then to point C along the line shown in the figure below. a) Find the distance covered by the moving object. b) Find the magnitude and direction of the displacement of the object.
3 gru 2020 · Get the definition of a single replacement reaction or single displacement reaction. Get examples of single replacement reactions and learn how to use the metal reactivity series to predict whether a reaction will occur and the products.
A displacement reaction occurs when a more reactive element displaces, or pushes out, a less reactive element from a compound that contains the less reactive element.
Key terms. Equations. If displacement is a vector, why is there no arrow above the x? Δ x →. Common mistakes and misconceptions. People sometimes swap the initial and final positions in the displacement equation. It's easy to get mixed up and put the initial position first in the displacement equation to get − Δ x. instead of Δ x.
Kinematic equations relate the variables of motion to one another. Each equation contains four variables. The variables include acceleration (a), time (t), displacement (d), final velocity (vf), and initial velocity (vi).
In metal displacement reactions, a metal in a compound is displaced by another metal that has been reacted in the elemental form. For example, magnesium can displace Co2+ ions from CoCl2 forming MgCl 2 salt: Mg (s) + CoCl2(aq) → MgCl2(aq) + Co (s) The question is how do we know which metal can displace another metal from a salt?
For example, \[\ce{2HCl(aq) + Zn(s) → ZnCl2(aq) + H2(g)}\] is an example of a single-replacement reaction. The hydrogen atoms in \(\ce{HCl}\) are replaced by \(\ce{Zn}\) atoms, and in the process a new element-hydrogen-is formed. Another example of a single-replacement reaction is \[\ce{2NaCl(aq) + F2(g) → 2NaF(s) + Cl2(g)}\]
