Answers: 1
Chemistry, 22.06.2019 10:00
Which sentence about particles in matter is true? a. atoms are present in solids and liquids but not in gases. b. the particles of matter are in constant motion. c. the same kinds of atoms are found in different elements. d. when a solid changes to a liquid, the sizes of the particles change.
Answers: 1
Chemistry, 23.06.2019 06:00
When hydrogen peroxide (h2o2) is added to potassium iodide (ki) solution, the hydrogen peroxide decomposes into water (h2o) and oxygen (o2). the chemical equation for the decomposition reaction is: 2h2o2—> 2h2o + o2. what is the role of the potassium iodide in this reaction? a. reactant. b. product. c. precipitate. d. catalyst.
Answers: 1
Chemistry, 23.06.2019 07:30
Which statement is actually true about the relationship between activation energy and reaction rates? low activation energy barriers result in low rates. high activation energy barriers result in low rates. low activation energy barriers result in no reaction. high activation energy barriers result in no reaction.
Answers: 2
Chemistry, 23.06.2019 07:30
If you try to move a piano and are unable to move it, did you perform any work in the scientific sense of the word? yes or no?
Answers: 1
* Muscles usually act in pairs because they O can pull in only one direction O must combine to have...
Computers and Technology, 31.12.2019 17:31
Biology, 31.12.2019 17:31
English, 31.12.2019 17:31
History, 31.12.2019 17:31
Biology, 31.12.2019 17:31
Health, 31.12.2019 17:31
Mathematics, 31.12.2019 17:31
Biology, 31.12.2019 17:31
SAT, 31.12.2019 17:31
English, 31.12.2019 17:31
Mathematics, 31.12.2019 17:31