Chemistry, 22.10.2020 03:01 ashtor1943
How far from freezing is a 50 degrees reading on a Celsius thermometer?
Answers: 3
Chemistry, 22.06.2019 17:30
Observation and experimentation have led many scientists to accept a theory about the origin of the universe. this theory is called the big bang theory. scientific evidence collected and observed by scientists around the world suggests that the universe is ever expanding from a hot and dense initial state. what makes this a scientific theory? (2 points)
Answers: 2
Chemistry, 22.06.2019 19:00
How does a catalyst increase the speed of a reaction? a. the catalyst eliminates the activated complex stage, allowing products to form immediately. b. the catalyst lowers the energy level of the reactants, making it easier for them to react. c. the catalyst makes it easier for the activated complex to form, lowering the activation energy. d. the catalyst raises the energy level of the products, making the reaction finish sooner. reset next
Answers: 1
Chemistry, 23.06.2019 05:30
Astudent made the lewis dot diagram of a compound as shown. mg is written with two dots shown on its top. an o is written on each side of mg. each o has six dots around it. an arrow is shown from one dot on mg toward the vacant space around the o on the right. another arrow is shown from the other dot on mg toward the vacant space around the o on the left. the title of the art is students lewis dot model. what is the error in the lewis dot diagram? an o atom should transfer all its six electrons to mg because the formula is mgo. both electrons of mg should be transferred to one o atom because the formula is mgo. the electrons should be transferred from each o atom to mg because mg has fewer electrons. the number of dots around mg should be four because it has to transfer two electrons to each o.
Answers: 2
Chemistry, 23.06.2019 09:40
Write balanced nuclear equations for the formation of five elements whose atomic number is between helium (2) and iron (26):
Answers: 1
How far from freezing is a 50 degrees reading on a Celsius thermometer?...
History, 19.11.2019 18:31
Mathematics, 19.11.2019 18:31
Mathematics, 19.11.2019 18:31
Mathematics, 19.11.2019 18:31
Biology, 19.11.2019 18:31
Mathematics, 19.11.2019 18:31
Biology, 19.11.2019 18:31
History, 19.11.2019 18:31
Social Studies, 19.11.2019 18:31
History, 19.11.2019 18:31