Chemistry, 03.11.2020 19:40 briiiii7410
Match the element with its description
Sodium Has properties of both metals and nonmetals
Silicon Highly reactive gas
Bromine Malleable, soft, and shiny
Argon Nonreactive gas
Answers: 2
Chemistry, 21.06.2019 19:30
Water molecules have a strong attraction to each other because of hydrogen bonding, allowing water to move against gravity up a plant's stem through capillary action. true false
Answers: 2
Chemistry, 22.06.2019 22:30
Which statement best summarizes the importance of ernest rutherford’s gold foil experiment? it proved that all of john dalton’s postulates were true. it verified j. j. thomson’s work on the atomic structure. it showed that an electron circles a nucleus in a fixed-energy orbit. it showed that a nucleus occupies a small part of the whole atom.
Answers: 1
Chemistry, 23.06.2019 02:50
Dumbledore decides to gives a surprise demonstration. he starts with a hydrate of na2co3 which has a mass of 4.31 g before heating. after he heats it he finds the mass of the anhydrous compound is found to be 3.22 g. he asks everyone in class to determine the integer x in the hydrate: na2co3·xh2o; you should do this also. round your answer to the nearest integ
Answers: 2
Match the element with its description
Sodium Has properties of both metals and nonmetals
Sil...
Sil...
Mathematics, 15.04.2021 01:00
Mathematics, 15.04.2021 01:00
Mathematics, 15.04.2021 01:00
Chemistry, 15.04.2021 01:00
Spanish, 15.04.2021 01:00
Chemistry, 15.04.2021 01:00
Chemistry, 15.04.2021 01:00
Biology, 15.04.2021 01:00