What do elements in the same group on the periodic table have in common?

Hydrazine, n2h4, is used as a rocket fuel. in the reaction below, if 80.1 g of n2h4 and 92.0 g of n2o4 are allowed to react, how many grams of excess reactant remain at the end of the reaction?

Which two particles have opposite charges? (1) an electron and a neutron (2) an electron and a proton (3) a proton and a neutron (4) a proton and a positron

Take 3 drops per 15 lbs. of body weight per day divided into 6 doses until the cooties are gone. how many drops do you take per dose if your body weight is 155 pounds?

The pH of lemon juice at 298 K is found to be 2.32. What is the concentration of e^-1. ions in the solution?

What controls the viscosity of lava?

How much heat (in kJ) is evolved in converting 1.00 mol of steam at 160.0∘C to ice at - 50.0∘C? The heat capacity of steam is 2.01 J/g⋅∘C and of ice is 2.09 J/g⋅∘C.

When a polar molecule causes a charge redistribution in a nonpolar molecule, what are the molecules of the mixture most likely experiencing?

How many moles are in 458 grams of Na2SO4

What are the types of radioactive rays that can be produced during a radioactive decay?

Why is it important that acids and bases have different properties?