subject
Chemistry, 28.05.2020 15:00 jchavez0790

Which of the following is a sign a chemical reaction has occurred?
A blue liquid is mixed into a yellow liquid, and the mixture turns green.
A piece of metal is placed in water and produces sparks and gas.
Aliquid is heated on a hotplate, and bubbles form.
A solid powder is mixed into a liquid and disappears.

ansver
Answers: 1

Another question on Chemistry

question
Chemistry, 22.06.2019 04:30
Using the periodic table, complete the table to describe each atom. type in your answers
Answers: 3
question
Chemistry, 22.06.2019 10:00
How many grams of co(g) are there in 74.5 ml of the gas at 0.933 atm and 30o c?
Answers: 1
question
Chemistry, 22.06.2019 13:30
An animal cell loses the ability to convert energy stored in food to energy that the cell can use. which of the cell's organelles has stopped working? a.the mitochondria b.the nucleus c.the vacuoles d.the endoplasmic reticulum
Answers: 1
question
Chemistry, 22.06.2019 21:00
Which property of water causes water drops to bead on a freshly waxed car?
Answers: 2
You know the right answer?
Which of the following is a sign a chemical reaction has occurred?
A blue liquid is mixed into...
Questions
question
Social Studies, 12.02.2021 14:00
question
Mathematics, 12.02.2021 14:00
question
Chemistry, 12.02.2021 14:00
question
Mathematics, 12.02.2021 14:00