A student is in the lab and combines two unknown substances ( which you should never do because it is not safe). one is a white
solid, and the other one is clear liquid. after the substances are mixed, you observe... 1- bubbles forming, 2- dementia turns a dark purple color, and 3-the white solid substance dissolves into the liquid.
did a physical change or a chemical change happen? which of the observation would you use as evidence in why?
If you were to mix two unknown substances and a reaction as such was to happen it would most likely be a Chemical change as it had a reaction with the other substance and created a chemical reaction.
Sorry for any spelling errors English is my second language.
and earthquake epicenters are related to tectonic plate boundaries. causes Earth's plates to move. Most volcanoes and earthquakes are caused by the motion and interaction of Earth's plates. The way Earth's plates interact at boundaries is an important factor in the locations of earthquakes and volcanoes
