Is the Balanced Equation for the Reaction Between Mg and HCl MgCl + H?

Thread starter dg_5021
Start date Nov 14, 2004
Tags

Balance Hcl

AI Thread Summary

The balanced equation for the reaction between magnesium (Mg) and hydrochloric acid (HCl) is Mg + 2HCl → MgCl2 + H2. The reaction produces magnesium chloride (MgCl2) and diatomic hydrogen gas (H2), not monatomic hydrogen. This type of reaction typically involves a metal reacting with an acid to form a salt and hydrogen gas. Understanding the products is crucial, as monatomic hydrogen is rarely encountered in such reactions. Properly balancing chemical equations is essential for accurate representation of chemical processes.

Nov 14, 2004

dg_5021

How do u balance Mg + HCl?

is it MgCl + H?

Physics news on Phys.org

Nov 14, 2004

Diane_

Homework Helper

Chemistry! I was thinking physics, and seeing Mg didn't help. :)

Think about it - you have a metal reacting with an acid. What are the products of something like that? And how often do you see monatomic hydrogen wandering around?

Nov 15, 2004

James R

Science Advisor

Homework Helper

Gold Member

Hint: acid + metal -> salt + water.

Thread 'Errors and significant figures'

I multiplied the values first without the error limit. Got 19.38. rounded it off to 2 significant figures since the given data has 2 significant figures. So = 19. For error I used the above formula. It comes out about 1.48. Now my question is. Should I write the answer as 19±1.5 (rounding 1.48 to 2 significant figures) OR should I write it as 19±1. So in short, should the error have same number of significant figures as the mean value or should it have the same number of decimal places as...

View full post »

Thread 'A cylinder connected to a hanging mass'

Let's declare that for the cylinder, mass = M = 10 kg Radius = R = 4 m For the wall and the floor, Friction coeff = ##\mu## = 0.5 For the hanging mass, mass = m = 11 kg First, we divide the force according to their respective plane (x and y thing, correct me if I'm wrong) and according to which, cylinder or the hanging mass, they're working on. Force on the hanging mass $$mg - T = ma$$ Force(Cylinder) on y $$N_f + f_w - Mg = 0$$ Force(Cylinder) on x $$T + f_f - N_w = Ma$$ There's also...

View full post »

Thread 'Explain this asphalt sheen'

This problem is two parts. The first is to determine what effects are being provided by each of the elements - 1) the window panes; 2) the asphalt surface. My answer to that is The second part of the problem is exactly why you get this affect. And one more spoiler:

View full post »