subject
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

ansver
Answers: 1

Another question on Chemistry

question
Chemistry, 22.06.2019 19:30
Astudent conducts an experiment to determine how the amount of water given to a plant affects its growth. what is the independent variable for this experiment?
Answers: 1
question
Chemistry, 22.06.2019 20:30
Select all the correct answers.which compounds have the empirical formula ch20? (multiple answers)a.c2h4o2b.c3h603c.ch2o2d.c5h1005e.c6h1206
Answers: 2
question
Chemistry, 22.06.2019 20:30
Calculate the percent composition by mass of each element in al(oh)3. use at least three significant figures.
Answers: 1
question
Chemistry, 22.06.2019 23:00
Consider the reaction: 2al(s) + fe2o3(s) → al2o3(s) + 2fe(s) the δhf for fe2o3(s) = -824.3 kj/mole. the δhf for al2o3(s) = -1675.7 kj/mole. finish the equation. δhrxn = [(1)( kj/mole) + (2)( kj/mole)] - [(1)( kj/mole) + (2) ( kj/mole)]
Answers: 1
You know the right answer?
Which of the following things are clues that a chemical change has taken place?
select all t...
Questions
question
Mathematics, 21.04.2021 01:00
question
Biology, 21.04.2021 01:00
question
English, 21.04.2021 01:00
Questions on the website: 13722362