![DaFuzzyDude](/avatars/18062.jpg)
DaFuzzyDude
31.01.2021 •
Chemistry
Based on the following scenario, classify each of the following variables as a dependent, independent, or
confounding variable.
A city water district hypothesizes that lead contamination in the drinking water in a neighborhood is the result of
degrading lead pipes between the city's water main and the tap in the house. They collect water samples from the
water treatment facility, the water main upstream of the neighborhood, and at the kitchen faucet of three houses in
the neighborhood. They then tested each of these samples for lead concentration. Detectable levels of lead were
found only in water taken from two of the kitchen taps, supporting the hypothesis that residential connections to the
water main are the source of contamination.
The location where water was collected
Determine the answer for each dependent, independent, or
confounding variable.
[Choose
The concentration of lead in the water sample
[Choose
Who collected the water sample
[Choose
The type of container used to collect and store
the water sample before testing
[Choose
Solved
Show answers
More tips
- S Style and Beauty How to Make Your Lips Fuller? Ideas and Tips for Beautiful Lips...
- S Style and Beauty How are artificial nails removed?...
- F Family and Home How to Sew Curtain Tapes: Best Tips from Professionals...
- H Horoscopes, Magic, Divination How to Cast a Love Spell on a Guy? Guide for Guys...
- F Family and Home How to Properly Use a Water Level?...
- L Legal consultation What Documents Are Required for a Russian Passport?...
- H Health and Medicine How to Treat Styes: Causes, Symptoms, and Home Remedies...
- F Family and Home Protect Your Home or Apartment from Pesky Ants...
- T Travel and tourism Lost in the Catacombs: What to Do?...
- C Computers and Internet Make Easy Accessible Screenshots on iPad in Just a Few Minutes...
Answers on questions: Chemistry
- C Chemistry An instrument used to measure and record ground movements during an earthquake is called a(n) a. seismograph. b. laser-ranging device. c. creep meter. d. moment magnitude...
- C Chemistry Use the three-letter shorthand notation for each amino acid. For example, the dipeptide with alanine as the N-terminal amino acid and valine as the C-terminal amino acid...
- C Chemistry 2 Al + Fe2O3 = Al2O3 + 2 Fe + 850 kJ How many kJ are produced by 2 moles of Fe2O3? *...
- C Chemistry 44given the equation representing a reaction at equilibrium : 2so2(g) + o2(g) == 2so3(g) + heat which change causes the equilibrium to shift to the right? (1) adding a...
- C Chemistry What happens when a glass is filled to the brim with water and an ice cube is in the glass already what would happen to the level of water when the ice cube had melted?...
- C Chemistry Ireally don t understand how to do this. using the haber process to create ammonia from nitrogen and hydrogen gases, you need to manufacture 1000 liters of ammonia gas....
- C Chemistry Pressure has an effect on boiling point because pressure affects a. the entropy of a gas. b. the entropy of a liquid. c. the entropy of both a gas and a liquid. d. neither...
- C Chemistry People with anorexia nervosa are often treated in a hospital because...
- H History In a __ __ a central government holds all the power. It creates local governments and delegates certain powers to them but can abolish them at any time....
- M Mathematics HELP ASAP it’s from i-ready I’m in 8th grade help...
Ответ:
variable 1 cuz i need some points
Ответ:
Explanation:
C . Lactic acid