Chemistry, 16.10.2020 18:01 krystal408
15. During an investigation, students dropped a tarnished penny into a
solution of acetic acid and sodium chloride. Tiny bubbles formed around
the penny, and the penny was less tarnished after two minutes of soaking
in the acetic acid and sodium chloride solution. The student inferred that a
chemical reaction occurred. What evidence supports the student's
inference? *
The penny experienced a color change, and a gas was produced.
The penny experienced a color change, and a precipitate was formed.
The penny experienced a color change and is in a new state of matter.
The penny experienced a color change and produced light.
O
Answers: 2
Chemistry, 21.06.2019 23:30
Calculate the expected ph values of the buffer systems from the experiments (a,b,c,d), using the henderson- hasselbalch equation, ph-pka+log[a-]/[ha]. use for pka values carbonic acid= 6.37, and acetic acid= 4.75.
Answers: 2
Chemistry, 22.06.2019 06:30
Identify the missing numbers below to show the result of multiplying the numbers (1.6 Γ 10-19)(5.0 Γ 106) = c Γ 10d
Answers: 1
Chemistry, 22.06.2019 06:30
Use examples from the article to explain one positive and one negative effect that chemistry has had on society.
Answers: 2
15. During an investigation, students dropped a tarnished penny into a
solution of acetic acid and...
Mathematics, 30.01.2020 04:42
Mathematics, 30.01.2020 04:42
Mathematics, 30.01.2020 04:42
SAT, 30.01.2020 04:43
Geography, 30.01.2020 04:43
Biology, 30.01.2020 04:43
Mathematics, 30.01.2020 04:43
Mathematics, 30.01.2020 04:43
Mathematics, 30.01.2020 04:43
History, 30.01.2020 04:43
Social Studies, 30.01.2020 04:43