Saturday
May 18, 2013

Posts by debbie


Total # Posts: 475

Chemistry
Need Help!! Describe how to make 2.5L of 0.1M HCL solution from 12M HCL concentrated solution and water. I got help earlier but still could not figure out the calculations. Please help, it has been a while since i took chemistry. Thank you soo much

Chemistry
Describe how to make 2.5L of 0.1M HCL solution from 12M HCL concentrated solution and water. Thank you

algebra 1
how do you solve this equation with the substitution method. 1) 6x + 4y = 6/5

geometry
In Exam Figure 7, AA′ = 33 m and BC =7.5 m. The span is divided into six equal parts at E, G, C, I, and K. Find the length of A′B. Round your answer to two decimal places.

Chemistry
the structural formula,with atoms A,B,and C unspecified,is? [Q2] the formula is C3 H6 Br2 If the compounds is called 1,2-dibromopropane, A,B,and C must be...what?

Chemistry
in describing an equilibrium reaction involving hydrogen gas, iodine gas, and hydrogen iodide gas, all of the statements about equation Q=[Hl]2 divide [H2][l2]are true except for which one?

chemistry
with the exception of the transition elements, Groups3-12 in the periodic Table, and the noble gases, Group 18, atomic radii___ within periods, while atomic radii___ within groups.

chemistry
if a small piece of sodium is dropped into water,it begins to react, forming hydrogen gas and sodium hydroxide. In the equation, 2Na(s)+2H2O(l) 2NaOH(aq)+H2(g),the sodium hydroxide that is formed is a..

Math
find the value of the expression 3*45 divide 9-2 (10-6) -4 divide 2

Mathmatic
7+7.9 add

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