If the ph of a solution is increased from ph 5 to ph 7, it means that the concentration of h+ is twice (2x) what it was at ph 5. concentration of h+ is one-half (1/2) what it was at ph 5. concentration of oh- is 100 times greater than what it was at ph 5. concentration of h+ is 100 times greater and the concentration of oh- is one-hundredth what they were at ph 5.

What were the main components of earth’s earliest atmosphere? oxygen and ammonia hydrogen and helium oxygen and nitrogen hydrogen and nitrogen

With the word calcite wich completes the analogy mineral, erosion, marble, or aragonite

An ecologist studied the same species of deer during the summer and the winter. she noticed that during the summer, when there was plenty of food, the deer were energetic and playful. however, during winter when food was scarce, the deer moved more slowly and did not run unless they needed to escape a predator. which scientific fact is best supported by her observations?