Chemistry, 13.10.2020 01:01 mandilynn22
The pH of a sample of lake water was originally 6 when measured in 1987. When measured again in 2014, the pH of the water was 4.
How has the concentration of hydrogen ions in the lake changed?
a. The concentration of hydrogen ions has increased by a factor of 2.
b. The concentration of hydrogen ions has increased to 10 times its original value.
c. The concentration of hydrogen ions has increased to 100 times its original value.
d. The concentration of hydrogen ions has decreased by a factor of 2.
Answers: 2
Chemistry, 22.06.2019 07:30, tntaylor862
Using data from seismic waves, geologists have learned that earth’s interior is made up of several
Answers: 1
Chemistry, 22.06.2019 11:00, justarando
Which element would mostly likely have an electron affinity measuring closest to zero
Answers: 3
Chemistry, 22.06.2019 20:20, Matseleng3775
The characteristics of two different types of reactions are shown below: reaction a: electrons are gained by the atoms of an element. reaction b: protons are lost by the atom of an element. which statement is true about the atoms of the elements that participate in the two reactions? their identity changes in both reaction a and reaction b. their identity changes in reaction a but not in reaction b. their identity changes in reaction b but not in reaction a. their identity remains the same in both reaction a and reaction b.
Answers: 1
The pH of a sample of lake water was originally 6 when measured in 1987. When measured again in 2014...
Geography, 04.10.2019 20:00