Recent content by tommyjohn

Homework Statement Hey I am having problems understanding how to get the net ionic and ionic formula. Any suggestions and/or tips on how to do them?

Newton's second law of motion pertains to the behavior of objects for which all existing forces are not balanced. The second law states that the acceleration of an object is dependent upon two variables - the net force acting upon the object and the mass of the object. The acceleration of an...

in that case i know the paper that's not crumpled would fall slower because there's more air friction since its more spread out.. is it the same concept for the rain drops eventhough there both spheres?

if there going the same speed since the gf is dependent it would make the bigger one fall fast since they both have the same air resistance.

gravitational force is proportional to the mass of the object air resistance is proportional to the square of the speed? ( i had to google it) i know the gravitational pull is 9.8m/s so I am assuming the heavier rain drop will fall faster since its mass is larger and due to...

Homework Statement Why do large raindrops fall faster than smaller ones? Find out the mathematical relationship between raindrops terminal velocity and size. Hint: Assume that the drops are spherical and there density (d=m/v) is constant Homework Equations D=m/v The Attempt at a...

Homework Statement silver tarnishes in the presence of hydrogen sulfide (rotten egg odor), also found in Chinese dry wall and oxygen because of the reaction: 4Ag + 2H(2)S + O(2) --> 2Ag(2)S + 2H(2)O How many grams of Ag(2)S could be obtained from a mixture of 19.00g Ag, @.80 H(2)S and...

Homework Statement Digiton is a substance that technologists use to determine cholesterol levels. It contains only (C,H, and O) and its percent composition is 54.71% C, 7.54% H, and 37.74% O by mass. The experimentally determined molecular mass is 1229g/mol. What is the empirical amd molecular...

Homework Statement How many grams are there in 6.80 moles of potassium sulfide? How many moles are there in 200g of barium nitride? Homework Equations I just want to see if i got the right answer The Attempt at a Solution for part A. i got 759g by multiplying 6.80x110.24(molar mass...

thank you i appreciate it..I like how on this website you guys actually help out and not give the answer

so as for question numer 1 it would be 35.5x27.23x54 which equals 52199.91 and rounded to the appropriate number of sig figs it would be 52x10(-3) correct? as for question number 2 i understand that concept but its asking how long would it take for it to go 1 km..i tried dividing it by 3600...

Homework Statement What is the volume of a carton if tis base has a width of 35.5 cm and a length of 27.23cm? The height of the carton is 54 cm. Homework Equations v=bxh The Attempt at a Solution 35.5x54=1917 im pretty sure volume is base x height but i don't know if with the...