subject
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.

ansver
Answers: 2

Another question on Chemistry

question
Chemistry, 22.06.2019 09:00
George is a dalmatian puppy. describe what happens to light that allows you to see george’s black and white coat.
Answers: 1
question
Chemistry, 22.06.2019 16:30
4. a 20-kg child is tossed up into the air by her parent. the child is 2 meters off the ground traveling 5 m/s. circle one: ke / gpe / both show your work for finding the values of each type of energy the object has:
Answers: 1
question
Chemistry, 22.06.2019 22:00
Scientists often have to deal with numbers that are either very large or very small. for example, the radius of the sun is approximately 696,000 kilometers, while bacterial cells are as small as 1.9 × 10-4 millimeters. express each number in an alternate form.
Answers: 1
question
Chemistry, 23.06.2019 02:30
Which statement best describes the liquid state of matter? a. it has definite shape but indefinite volume. b. it has definite shape and definite volume. c. it has indefinite shape and indefinite volume. d. it has indefinite shape but definite volume.
Answers: 1
You know the right answer?
The pH of a sample of lake water was originally 6 when measured in 1987. When measured again in 2014...
Questions
question
Physics, 10.10.2020 23:01
question
Mathematics, 10.10.2020 23:01
question
Mathematics, 10.10.2020 23:01
question
Mathematics, 10.10.2020 23:01
question
Biology, 10.10.2020 23:01
question
Mathematics, 10.10.2020 23:01
question
Mathematics, 10.10.2020 23:01