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What are the products when an acid reacts with a metal?

An acid and metal react to form hydrogen and a salt.
For example:
Mg + 2HCl ----> MgCl2 + H2
1 mole of magnesium reacts with 2 moles of hydrochloric acid to form 1 mole of magnesium chl...

KF
Answered by Kate F. Maths tutor
2754 Views

Three forces, (15i + j) N, (5qi – pj) N and (–3pi – qj) N, where p and q are constants, act on a particle. Given that the particle is in equilibrium, find the value of p and the value of q. (Mechanics 1 June 2017)

As the particle is at rest, the net force acting on the particle must be equal to zero, i.e. Fres = 0Therefore, (15i + j) + (5qi - pj) + (-3pi - qj) = 0Collating 'i' terms: 15 + 5q - 3p = 0 (Equation 1...

IK
Answered by Idris K. Maths tutor
11366 Views

Find the Cartesian equation of plane Π containing the points A(6 , 2 , 1) and B(3, -1, 1) and perpendicular to the plane Π2 (x + 2y - z - 6 = 0).

The information we are given to solve for the equation of the plane are the points A and B, as well as the equation of a plane which lies perpendicular to the plane Π we are solving for.Method 1: Since A ...

YG
Answered by Yannick G. Maths tutor
7453 Views

Find dy/dx if y=(x^3)(e^2x)

Use product rule. Set u=x^3 and v=e^2x. Differentiate u and v. Then dy/dx = uv'+vu' = (3x^2)*(e^(2x))+(2x^3)(e^(2x)). This problem is best explained written on a whiteboard (it's difficult to give an expl...

JM
Answered by Joseph M. Maths tutor
5569 Views

What is the moment about the pivot C

Uniform rod AB of weight 5g (g being 9.8) and length 4 metres rested on a pivot C which is 1.5m from B. Calculate the moments about the point C.sketch diagram of information provided weight is ac...

TZ
Answered by Talal Z. Maths tutor
2876 Views

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