Chemistry, 12.11.2020 17:30 gunnatvinson
Question: What kinds of evidence indicate a chemical change has taken place?
Observe: Some chemical reactions release heat, and others absorb heat. In an exothermic reaction, heat is released and the temperature of the system rises. In an endothermic reaction, heat is absorbed and the temperature of the system decreases.
In the Gizmo, drag the Thermometer into the flask of water.
A.
What is the starting temperature?
B.
Click Play, and wait for the reaction to end. What is the final temperature?
C.
Was this reaction exothermic or endothermic?
Answers: 2
Chemistry, 22.06.2019 21:30, liamgreene90
In one or two grammatically correct sentences, write a definition for the term molecule geometry
Answers: 3
Chemistry, 23.06.2019 04:31, saladdressing1425
Chemical engineering who specializes in negotiating for large purchases and instructing customers in use of the products are
Answers: 1
Chemistry, 23.06.2019 05:00, cpcoolestkid4
C=59(fâ32)the equation above shows how temperature f, measured in degrees fahrenheit, relates to a temperature c, measured in degrees celsius. based on the equation, which of the following must be true? a temperature increase of 1 degree fahrenheit is equivalent to a temperature increase of 59 degree celsius. a temperature increase of 1 degree celsius is equivalent to a temperature increase of 1.8 degrees fahrenheit. a temperature increase of 59 degree fahrenheit is equivalent to a temperature increase of 1 degree celsius. a) i onlyb) ii onlyc) iii onlyd) i and ii only
Answers: 1
Question: What kinds of evidence indicate a chemical change has taken place?
Observe: Some chemical...
Computers and Technology, 01.12.2021 02:30
Mathematics, 01.12.2021 02:30
History, 01.12.2021 02:30
Mathematics, 01.12.2021 02:30
Mathematics, 01.12.2021 02:30