Questions and answers by

Chopsticks

Questions (119)

Sometimes, instead of percentages compostion, you will have the composition of a sample by mass. Using the actual mass of the
1. 3 answers
2. 878 views
I am not a music person and I rarely lisen to music. My teacher made us do an essay to modern music that has the theme of
1. 1 answer
2. 956 views
can someone reply to my previous chemistry thread please?
1. 1 answer
2. 453 views
Determine the simplest formula for compounds that have the following analyses. The data may not be exact.A. 28.5% iron, 48.6% O,
1. 4 answers
2. 1,727 views
This is kind of tricky for me.What os the empirical formula (lowest whole number ratio) of the compounds below? A. 25.3% Cu,
1. 6 answers
2. 2,205 views
Can someone reply to my previous post.
1. 3 answers
2. 554 views
What is the empirical forumla (lowest whole ratio) of the compounds below?A. 13.0g Mg 1 mole/24.312 = .53 mole 87.0g Br 1
1. 5 answers
2. 690 views
Aluminum bromide hexahydrateHow would you know its AlBr3 * 6H2O instead of just AlBr * 6H2O?
1. 6 answers
2. 681 views
Hey Can you take a look at my previous post that you replied on.
1. 1 answer
2. 426 views
Calculate the percentage of water in each of the following hydrates.Aluminum bromide hexahydrate I just need help setting this
1. 3 answers
2. 3,514 views
I know how to solve if the leading coefficient is 1, but how would i solve it if its not 1.Ex. f(x) = 2x^3 + 7x^2 - 7x + 30 Can
1. 7 answers
2. 1,265 views
Ok heres another factoring that I need someone to checkProblem: -x^3 + 27 -(x^3 - 3^3) So I moved the positive and found out
1. 2 answers
2. 550 views
thanks.
1. 0 answers
2. 247 views
Ok heres another factoring that I need someone to checkProblem: -x^3 + 27 -(x^3 - 3^3) So I moved the positive and found out
1. 1 answer
2. 473 views
Can someone tell me how to factor2a^2b - 16ab + 32b Should I factor 2b out of it?
1. 5 answers
2. 517 views
Can someone tell me how to factor2a^2 - 16ab + 32b I just need someone to help me get started, and I want to see if I can finish
1. 5 answers
2. 520 views
Using aervage atmoic masses for each of the following elements, calculate the mass, in amu (grams)A. 635 atoms of hydrogen --->
1. 7 answers
2. 1,704 views
Chromium is ametal that is added to steel to improve its resitance to corrosion. Calculate both the number of miles in a sample
1. 2 answers
2. 2,006 views
A silicon chip is used in an integrated circuit of a microcomputer has a mass of 5.68 mg. How many Si Atoms are present in this
1. 5 answers
2. 1,849 views