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
social studies!!!
Why don't you try to look up the textbook online for that just go on google and type in what your textbook name is and try it! And TELL ME IF IT WORKS OR NOT!!!
math
NOOOOO THAT IS NOT WHAT I MENT I MEANT BY THERE SELFS WHEN THEY HAVE NUMBERS AROUND THE SHAPES AND YOU HAVE TO MULTIPLY THE NUMBERS BY BASE AND THE HIEGHT!!!!!
math
For MATH and its call MULTIPLYING TRAPEZOIDS AND TRIANGLES?
math
hi my name is Hannah and I need help with my math homework it is something to do with multiplying trapezoids and triangles? Also, what are the formula for the shapes so that way i would be able to do my homework? THANKS FOR THE HELP!!!!!!
chemistry
Phenylacetic acid (C6H5CH2COOH) is one of the substances that accumulates in the blood of people with phenylketonuria, an inherited disorder that can cause mental retardation or even death. A 0.021 M solution of C6H5CH2COOH has a pH of 2.99. Calculate the Ka value for this aci...
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