According to this chemical formula. all of the following elements are found in phosphoric acid except _phosphoric acid

a. hydrogen

b. oxygen

c. phosphorus

d. potassium

What is it called when plants lose water though their leaves

Are these strong bases, neutral, strong acids, weak acids or weak base household bleach (ph=12.6) fluid in a car's battery (ph of less than 1.0) milk (ph=6.7) stomach contents (ph=2.2) pure water (ph=7)

Which of these serves as a reference for comparison during a scientific investigation? a)outcome variable (dependent variable) b) test variable (independent variable) c)control group d)hypothesis