Posts by she
Total # Posts: 15
A sample of glucose C6H12O6 contains 2.03x10^21 atoms of carbon. how many atoms of hydrogen does it contain? mole of H= 6.02x10^23/2.03x10^21? i dont know if my formula is right and i also dont know where to get the mole of H. please help me understand this problem how many ...
June 4, 2016
on a town map ,each unit of the coordinate plane repersents a mile. Three branches of a bank are located at A(-3,1) , and C (4,-1). A bank employee drives from branch A to branch B and then drives halfway to branch C before getting stuck in traffic. what is the minimum total ...
August 23, 2015
calculate how many moles of CaCl22H2O are present in 1.0 g of CaCl22H2O and then calculate how many moles of pure CaCl2 are present in the 1.0 g of CaCl22H2O
March 18, 2015
five friends went to a baseball game. three of the friends each bought a ticket for x dollars and a soda for six dollars the other two friends each bough only tickets. write and simplify and expression that represent the amount of money spent
March 3, 2015
I am confused on the dillution of the MgCl2 do I have to divide by 95 because it is only 95% pure?
March 10, 2013
THE ANSWERIS 3
December 19, 2012
Microwave ovens emit microwave energy with a wavelength of 12.2 cm. What is the energy of exactly one photon of this microwave radiation?
October 10, 2012
A 2.50-g sample of powdered zinc is added to 100.0 mL of a 2.00-M aqueous solution of hydrobromic acid in a calorimeter with a total heat capacity of 448 J/K. The observed increase in temperature is 21.1 K at a constant pressure of one bar. Using these data, calculate the ...
October 10, 2012
Sarah jumped 18 1/2 feet in the long jump competition. Rachel jumped 19 1/8 feet. how much further did rachel jump?
July 30, 2012
how do i write a reflective account on communicating effectively wi th a service user in a care home
March 31, 2011
is it possible to construct a triangle with these given side lengths 6,10,15
October 8, 2010
gcf of 15,45
October 13, 2009
May 13, 2009
this is so easy. Use your brain
January 22, 2009
List two to three characteristics of Orientalism. How may Orientalism and prejudice contribute to hate crimes against these groups?
December 4, 2008