The sum of the protons and the neutrons in an atom equals the?

If a piece of glass tubing gets stuck in a rubber stopper, what is the safest procedure to get it out?

Phosphorus has the molecular formula p4, and sulfur has the molecular formula s8. how many grams of phosphorus contain the same number of molecules as 7.88 g of sulfur?

Why do minor parties have difficulty succeeding in the United States electoral system? A. tend to focus on only a single issue B. quickly join forces with the wrong party C. views are usually tied to strict religious doctrine D.

Proceeds at a certain temperature until the partial pressures of h2o, h2, and o2 reach 0.0150 bar, 0.00800 bar, and 0.00400 bar respectively. what is the value of the equilibrium constant at this temperature?

Identify some acids that are found in everyday materials. Lemon juice baking soda dish detergent vinegar hand soap

100 ml oxygen at 1.75 atm and 200ml nitrogen at 0.6 atm are passed to a 500 ml vessel. Calculate the total pressure of the mixture in the vessel at same temperature

Which is the best metal to use in an alloy to increase its electrical conductivity

Ice does not need to melt into liquid water before it can return to the atmosphere as water vapor. a. True b. False

How much ice at a temperature of - 17.5 ∘C must be dropped into the water so that the final temperature of the system will be 31.0 ∘C?

Why does a gas fill completely the vessel in which it is kept?