What are observations that indicate a chemical change has occurred?

What variable represents specific heat in the equation Q = mcAT? A. The variable Q B. The variable m C. The variable T D. The variable c

Given the balanced equation representing a reaction: H2 (g) + Cl2 (g) = = >2HCl (g) + energy Which statement describes the energy changes in this reaction? (1) Energy is absorbed as bonds are formed, only.

Find the valance shell and valance electron nitrogen

What does the term organic compound mean

1) How many grams of CO are needed to react with an excess of Fe2O3 to produce 225.5 gFe? Numbers after symbols are subscripts unless there is a ^ to show it is an exponent ... Fe2O3 (s) + 3CO (g) - - > 3 CO2 (g) + 2 Fe (s) ...

77.60 ml of. 210 M NaOH are required to neutralize 25.05 ml ofH2SO4 solution in a titrationexperiment. Calculate the molarity and normality of theH2SO4 solution.

A 25.0 g bold made of an alloy absorbed 250 J of heat as its temperature changed from 25.0 °C to 78.0 °C. What is the specific heat of the alloy?

How is an areas topography determined?

How to put a solution back into solution when it comes out of solution chemistry?

When the isotonic saline solution described in part A is connected to an unknown solution via a semipermeable membrane, the unknown solution level drops.