Please help me with these Chemistry questions.

I have a solution that contains too much solute per liter of solvent, so I will need to dilute the solution by adding more solvent. In this case the solvent is water. If my initial concentration is... more

Math Help URGENT

Write a system of equations and solve by either method, substitution or elimination. Show your work to get full or partial credit.The sum of two numbers is 26 and the difference between three times... more


High School Algebra 2

The multiplicative inverse of a complex number z is 1/z where z≠0. Find the multiplicative​ inverse, or​ reciprocal, of the complex number 5−11i. Then use complex conjugates to simplify. Check your... more


Statistics help

Assume that adults have IQ scores that are normally distributed with a mean of 103.3 and a standard deviation 24.2 Find the first quartile Upper Q 1Q1​, which is the IQ score separating the... more


Consider this reaction: 2H2(g) + O2(g)= 2H2O(g) If 10.0g of H2 is reacted with 150.0 of O2. Find the limiting reactant and the theoretical mass of product for H20

I am really having trouble finding the limiting reactant please explain where the numbers come from and why they are those numbers clarification on the steps.This also goes for the mass product I... more

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