Chemistry, 05.05.2021 06:50 BluVoid9255
A student hypothesizes that water from infrequently used school faucets contains more chemical impurities than the water from frequently used faucets
At the same time of day, the student uses a water test kit to measure the water impunities from the different faucets Which is the manipulated variable in
this investigation?
The time of Day when the water is collected
The chemicals used to test the water
the amount of water per sample
the locations of water collection
Answers: 2
Another question on Chemistry
Chemistry, 22.06.2019 03:00
Match term definition ellipse a) diagonal cross section of a cylinder circle b) diagonal cross section through the widest part of a sphere sphere c) cross section parallel to the base of a cone great circle d) shape created when a semi-circle is rotated around the y-axis triangle e) perpendicular cross section of a cone
Answers: 1
Chemistry, 22.06.2019 03:30
Select the correct answer. when carbon dioxide dissolves in water, it sometimes reacts with water to form carbonic acid as in this balanced equation: co2 + h2o → h2co3. if 495 milliliters of carbon dioxide at 25°c and 101.3 kilopascals reacts with excess water, what is the theoretical yield of carbonic acid? use the periodic table and the ideal gas resource a. 0.889 g b. 1.10g c. 1.27g d. 2.02g what's the answer! quick!
Answers: 1
Chemistry, 22.06.2019 10:00
Diffraction is when light is bent around obstructions. which of the these observation about clouds would indicate diffraction? a) after rain storms, you can sometimes see rainbows. b) clouds are white or gray and cannot be seen through. c) on a cloudy day, the temperature tends to be cooler than a sunny day. d) the edges of dark clouds appear lighter. this
Answers: 3
Chemistry, 22.06.2019 10:50
How many grams of oxygen gas are contained in a 15 l sample at 1.02 atm and 28°c? show your work.
Answers: 1
You know the right answer?
A student hypothesizes that water from infrequently used school faucets contains more chemical impur...
Questions
Mathematics, 26.04.2021 20:50
Business, 26.04.2021 20:50
Mathematics, 26.04.2021 20:50
Mathematics, 26.04.2021 20:50
Mathematics, 26.04.2021 20:50
Social Studies, 26.04.2021 20:50
