Chemistry

Chemistry, 10.07.2019 11:00, stephanieboyd

Which caused a change in matter. select each procedure that is likely a chemical change. salt crystals were crushed into a fine powder. bubbles were produced when iron was placed in acid. two liquids were combined, and a solid appeared. a piece of metal melted when it was heated. a white substance turned blue when water was added.

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Chemistry, 07.07.2019 21:30, Basicwhitegirl1

Ascientist carried out several different procedures, each of which caused a change in matter. select each procedure that is likely a chemical change. {1}salt crystals were crushed into a fine powder. {2}bubbles were produced when iron was placed in acid. {3}two liquids were combined, and a solid appeared. {4}a piece of metal melted when it was heated. {5}a white substance turned blue when water was added.

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Chemistry, 10.07.2019 11:00, apples2190

Which caused a change in matter. select each procedure that is likely a chemical change. salt crystals were crushed into a fine powder. bubbles were produced when iron was placed in acid. two liquids were combined, and a solid appeared. a piece of metal melted when it was heated. a white substance turned blue when water was added.

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Chemistry, 21.07.2019 06:00, kodaxmodz

While studying chemical and physical changes, students added salt to a glass of water. they stirred the salt until it dissolved and could no longer be seen. "that's a chemical change," sarah stated. do you agree? explain. a) yes, it is a chemical change because something new is formed. b) no, it is a physical change. it is salt and water and you can get the salt back by boiling off the water. c) yes, it is a chemical change because there was a change in the appearance of one of the components, the salt. d) no, it is a physical change. a chemical change cannot occur when you mix two compounds together like salt, nacl, and water, h2o, without adding heat.

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Physics, 31.07.2019 01:00, samiyahbass

Ascientist is performing and experiment on a powder . which is the following sign that a chemical change has definitely occurred during his experiment? a. the powder catches on fire b. the powder release bubbles c. the powder heats up d. the powder breaks apart into smaller particles

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Which caused a change in matter. select each procedure that is likely a chemical change. salt crysta...

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