Chemistry, 19.02.2020 04:28 Jenifermorales101
A student prepares a solution by combining 100 mL of 0.30 M HNO2(aq) and 100 mL of 0.30 M KNO2(a). Which of the following equations represents the reaction that best helps to explain why adding a few drops of 1.0 M HCI(aÄ…) does not significantly change the pH of the solution? (A) K*(aq) + CI (aq) >KCl(s)(B) HNO2(aÄ…) >H'(aÄ…) + NO2 (aq) (C) H (aq) + OH (aq) >H2O(l)
Answers: 3
Another question on Chemistry
Chemistry, 22.06.2019 12:00
1. if you have a gas at 127 degrees c, what is it's absolute temperature (kelvin)? a. 200kb. 300kc. 400kd. 500k2. if you had a gas whose absolute temperature measured 45 k, what is that temperature in celsius? a. -228 cb. -300 cc. 125 cd. 112 c
Answers: 2
Chemistry, 22.06.2019 12:00
Which of the following is an example of physical change not a chemical change? a) a log gives off heat and light as it burns. b) a tree stores energy from the sun in its fruit. c) a penny lost in the grass slowly changes color. d) a water pipe freezes and cracks on a cold night.
Answers: 2
Chemistry, 22.06.2019 12:30
Acontrol during an experiment. might change remains constant does not exist does change
Answers: 1
You know the right answer?
A student prepares a solution by combining 100 mL of 0.30 M HNO2(aq) and 100 mL of 0.30 M KNO2(a). W...
Questions
Mathematics, 08.03.2021 20:30
Chemistry, 08.03.2021 20:30
Biology, 08.03.2021 20:30
Computers and Technology, 08.03.2021 20:30
English, 08.03.2021 20:30
Social Studies, 08.03.2021 20:30
