What is sign?

What is the sign of gold?

What is the sign of DeltaG for a reaction (1) in galvanic cell. (2) I electrolytic cell?

What sign (+ or -) of entropy change in an endothermic reaction makes the reaction non-spontaneous at any temperature?

ArarrB , Rate of this reaction is expressed by -(d[A])/(dt) " or "+(d[B])/(dt) . What is the significance of (-) sign and (+) sign in this case ?

Nucleoprotein most probably gave the first sign of :

For what value of m the roots of the equation 3/(x+3+m)+5/(x+5+m)=1 are equal in a magnitude and opposite in signs?

In the reaction ArarrB , if the change in concentration of A in the time interval Deltat " is " Delta[A] , then the rate of reaction is -(Delta[A])/(Deltat) . What is the significance of the 'negative ' sign in the expression -(Delta[A])/(Deltat) ?

For what value of m the roots of the equation x^2-2(5+2m)x+3(7+10m)=0 are equal in magnitude and opposite in signs?

The ground state energy of hydrogen atom is - 13.6 eV :- What does negative sign indicate?