Chemistry, 11.10.2019 05:10, kordejah348

Which of the following things are clues that a chemical change has taken place?
select all that are correct!
question 3 options:

a. a color change happens

b. a precipitate is formed

c. the substance changes temperature without being exposed to heat or cold.

d. the substance changes states of matter

Answers: 1

Show answers

Other questions on the subject: Chemistry

Chemistry, 22.06.2019 00:30, catdog5225

Drive down any three characteristic of modern periodic table

Answers: 1

continue

Chemistry, 22.06.2019 09:40, kolibeilfuss

Sulfur dioxide and oxygen react to form sulfur trioxide during one of the key steps in sulfuric acid synthesis. an industrial chemist studying this reaction fills a 25.0l tank with 4.5 mol of sulfur dioxide gas and 4.5 mol of oxygen gas at 30.°c. he then raises the temperature, and when the mixture has come to equilibrium measures the amount of sulfur trioxide gas to be 1.4 mol. calculate the concentration equilibrium constant for the reaction of sulfur dioxide and oxygen at the final temperature of the mixture. round your answer to 2 significant digits.

Answers: 3

continue

Chemistry, 22.06.2019 12:00, yaz1206

In the following redox reaction which is the oxidizing agent and which is the reducing agent? alcl3 + na nacl + al oxidizing agent = reducing agent =

Answers: 1

continue

Chemistry, 22.06.2019 20:00, teacherpreacher

For the reaction c6h14(g) & longrightarrow; c6h6(g) + 4h2(g), δp(h2)/δt was found to be 2.5 x 10-2 atm/s, where δp(h2) is the change in pressure of hydrogen. determine δp(c6h14)/δt for this reaction at the same time.

Answers: 2

continue

Do you know the correct answer?

Which of the following things are clues that a chemical change has taken place?
select all t...