Physics, 02.07.2019 01:00, sonyfan

In physical science lab, kim and dawn added small pieces of magnesium to hydrochloric acid. they noticed that bubbles formed, the test tube got hot, and the magnesium disappeared. what is a sign that a chemical reaction has taken place in this experiment? question options: odor gas is produced magnesium appeared temperature decreased

Answers: 1

Show answers

Other questions on the subject: Physics

Physics, 21.06.2019 17:10, 1hannacarson

Which statement about covalent bonds is true

Answers: 1

continue

Physics, 22.06.2019 15:00, rosehayden21

A10 kg box initially at rest is pulled 18 meters across a horizontal, frictionless surface by a 40 n force. what is the block’s final velocity over the 18 meters?

Answers: 2

continue

Physics, 22.06.2019 18:30, kalithekittenqueen

Aprotein molecule in an electrophoresis gel has a negative charge. the exact charge depends on the ph of the solution, but 30 excess electrons is typical. what is the magnitude of the electric force on a protein with this charge in a 1600n/c electric field? write in two significant numbers, and also in newton

Answers: 2

continue

Physics, 22.06.2019 21:30, cigo145

The diagram shows a boulder rolling down a hill into a valley and then up the opposite hill. at which position does the boulder have the greatest kinetic energy? a b c d

Answers: 2

continue

Do you know the correct answer?

In physical science lab, kim and dawn added small pieces of magnesium to hydrochloric acid. they not...