subject
Chemistry, 02.07.2019 00:50 Omarrdz214

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: temperature decreased gas is produced magnesium appeared odor

ansver
Answers: 1

Another question on Chemistry

question
Chemistry, 21.06.2019 16:40
Who is better, messi or cristiano, i need this for a chemistry class. asap
Answers: 1
question
Chemistry, 21.06.2019 20:10
What can be added to the examples section of each circle? endothermic: ice melting into water, and a heat pack becoming warm exothermic: a glow stick glowing, and fireworks exploding endothermic: ice melting into water, and an instant ice pack turning cold exothermic: fireworks exploding, and gasoline burning endothermic: a glow stick glowing, and a heat pack becoming warm exothermic: an instant ice pack turning cold, and ice melting into water endothermic: gasoline burning, and an instant ice pack turning cold exothermic: ice melting into water, and an instant ice pack turning cold
Answers: 1
question
Chemistry, 22.06.2019 00:30
In numbering carbon atoms in the parent chain of a hydrocarbon, why would you number from right to left, rather than left to right
Answers: 1
question
Chemistry, 22.06.2019 03:30
Explain why pure hydrogen cyanide does not conduct electricity, but become a conductor when it is dissolved in water? (at room temp, pure hcn exists as a volatile liquid)
Answers: 1
You know the right answer?
In physical science lab, kim and dawn added small pieces of magnesium to hydrochloric acid. they not...
Questions
question
Mathematics, 16.11.2019 17:31
question
Mathematics, 16.11.2019 17:31
Questions on the website: 13722363