chem
so how do i know if the ph is changing?
chem
Indicate whether the pH increases, decreases, or remains the same when each of the following is added. (CH3NH3)Cl to a solution of CH3NH2 pyridinium nitrate, (C5H5NH)(NO3) to a solution of pyridine, C5H5N sodium formate to a solution of formic acid how do you know these?
chemistry
use a calulater
gepmetry
what grade science is this so i can help you
Chem
hi dan can you help me please on the science tab and it has my name on it hannah please thank you very much and have a very wonderful day
science
Ecological ________ - normal, gradual changes that occur in the types of species that live in an area. Help please and help me fast please!!!!!
biology
if you want to know what it is then go to google and type in your question and there you go and remember to click on the first link to the question so thst way you can know what the correct answer is!!!!!!!!!!
chemistry
thanks! also for this question Calculate the hydronium ion concentration and pH in a 0.037 M solution of sodium formate, NaHCO2. hydronium ion concentration I made an equation: k=x^2/.037-x but when i look up the k what compound am i looking for? how do i know?
chemistry
For each of the following reactions, predict whether the equilibrium lies predominantly to the left or to the right. HCN(aq) + SO42-(aq) CN -(aq) + HSO4-(aq) I think it has something to do with the Ka but im not sure!
physics
An ocean wave travels 17.1 m in 6.7 s. The distance between the two nearest wave crests is 5.1 m. What is the frequency of the wave? Answer in units of H
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