Chemistry
posted by Meenaakshi .
When solving Hess law problems,do we need to use all the equations given to get the Htotal or just choose the relevant equations that are related to the final equation required?
Let's say there r 5 equations given,but the relevant equations are 3 only ,so we can neglect the rest 2 equations rite? Thank you

Yes, you're right. Choose what you need and ignore the others.
Respond to this Question
Similar Questions

math
can someone correct these for me. 8x –4y = 16 y = 2x –4 My answer: This problem does not have a unique solution. This problem therefore is consistent and dependent These equations are the same. If you solve the first one for y, … 
Math
How do I write the Symmetric Equation of a line given the following parametric equations: (where t is a scalar) x=0t y=0t z=1+1t I know normally I would solve each equation for t and set the equations equal to one another. However, … 
Math
How do I write the Symmetric Equation of a line given the following parametric equations: (where t is a scalar) x=0t y=0t z=1+1t I know normally I would solve each equation for t and set the equations equal to one another. However, … 
chemistry  hess's law (check + help)
31. Carbon monoxide reacts with hydrogen gas to produce a mixture of methane, carbon dioxide, and water. (This mixture is known as substitute natural gas.) 4CO(g) + 8H2(g) → 3CH4(g) + CO2(g) + 2H2O(_) Use the following thermochemical … 
Chemistry
Mg(s) + 2HCl(aq) > MgCl2(aq) + H2(g) delta H1? 
Explanation of Maths B Question
An example of a wine glass design, using three equations, is given below. The base of the wine glass is defined by a quadratic equation, the stem by a linear equation and the body of the glass by a square root function. The difficult … 
Chemistry Hess's Law
(1) 2 Ni(s) + O2 (g) > 2NiO(s) delta H= 479.4 kJ (2) Ni(s) + Cl2(g) > NiCl2(s) delta H= 305.3 kJ Using equations 1 and 2 and Hess's Law, determine the amount of moles Nickel (ii) Chloride that was combusted given the following: … 
Math (Solving Equations)
Find all solutions (answers should be given in simplified form). Some answers may involve the number i. *I will use lowercase l to represent absolute value lines.* 3 lx1l + 4 = 19 We've never really worked with absolute value in solving … 
Chemistry VERY URGENT PLEASE
A) NaOH(s) > NaOH(aq) B) NaOH(s) + HCl(aq) > NaCl(aq) + H2O(l) C) NaOH(aq) + HCl(aq) > NaCl(aq) + H2O(l) Examine the 3 reaction equations, and determine the relationship between them. Demonstrate this relationship by combining … 
Math
PLEASE CHACK MY ANSWER!!! Discussion for Applications of Linear Systems When solving a system of equations, how do you determine which method to use?