For heavy elements what is the ratio of neutrons to protons that predicts a stable nucleus?

152 dm^3 of gas has a pressure of 98.6 kpa. at what pressure will the volume be quartered

How to find the volume of a gas

Which reason best explains why metals are malleable?

1) Copper oxide and carbon combine to produce metallic copper. Which of these is the balanced equation for this reaction? A. Cu2O+C - > 2Cu+CO2 B. 2Cu2O+C - > 4Cu+CO2 C. 3Cu2O+C - > 3Cu+CO2 D. 2Cu2O+2C - > 2Cu+2CO2

What are the parts of a chemical equation?

Which action by the British government was considered by American colonists to be a violation of their rights as Englishmen?

Calculate moles of oxygen atoms in 0.68mol of KMnO4

C2H6 (g) + O2 (g) → CO2 (g) + H2O (g) (not balanced) Determine the number of liters of CO2 formed at STP when 240.0 grams of C2H6 is burned in excess oxygen gas?

What type of change is baking a cake? Why?

The van der Waals forces of attraction between molecules always become stronger as molecular size 1) decreases, and the distance between the molecules increases 2)) increases, and the distance between the molecules decreases 3) decreases, and the