What's the oxidation number of cu (no3) 2

Write an expression for the equilibrium constant of each chemical equation: a. SbCl5 (g) SbCl5 (g) + Cl2 (g) b. 2 BrNO (g) 2 NO (g) + Br2 (g) c. CH4 (g) + 2 H2S (g) CS2 (g) + 4 H2 (g) d. 2 CO (g) + O2 (g) 2 CO2 (g)

The concentration of Cu2 + ions in the water (which also contains sulfate ions) discharged from a certain industrial plant is determined by adding excess sodium sulfide (Na2S) solution to 0.800 L of the water.

Which practice poses the greatest safety concern? A. talking to others in the lab B. accumulating clutter on the lab bench C. performing an experiment when sitting down D. reading the temperature of a water bath

Macy always thought there were only a few hair colors:blond, brown, and black. However, when she actually began looking around, she saw varying shades of these hair colors. What is a possible reason for so many different hair colors

Given the general chemical equation A-> 3C+D A. How many moles of C can be produced from one mole of A B. How many moles of D can be produced from four moles of A

A mixture of helium, neon, and xenon gases is made with the same mass of each gas. Which (if any) gas will have the highest partial pressure? a. They will all have the same partial pressure b. Xe c. He d. Ne

5.0 g of copper was heated from 20 degrees Celsius to 80 degrees Celsius. How much energy was used to heat Cu (specific heat capacity of Cu is 0.092 cal/g degrees Celsius)

Which pole is tilted towards the sun

What does it mean if a solid is malleable? A:it is comductive B: it is stretchable C: it is hard D: it is bendable

How can an atom become charged particle