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, 21.06.2019 21:30, gatorr2010
An alcohol thermometer makes use of alcohol's changing in order to measure temperature. as the temperature goes up, the alcohol contained in the thermometer increases in volume, filling more of the thermometer's tube.
Answers: 3
Chemistry, 22.06.2019 03:30, krharris
Melting and boiling are endothermic processes. this means that these processes absorb energy from their surroundings in order to occur. use this information and the data you collected in the phase change gizmo to describe what happens to the temperature of water when you boil it, then explain why this result occurs.
Answers: 2
The pH of a sample of lake water was originally 6 when measured in 1987. When measured again in 2014...
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