Chemistry, 26.01.2020 14:31 lakesha04begaye
What are the properties of density? sorry for asking so many questions today.
Answers: 2
Chemistry, 22.06.2019 05:30
Astudent carefully transfers 30 g of water and 30 g of alcohol in a glass tube, forming two layers and filling the tube completely. after sealing the tube, the student mixes the solutions, and notices a bubble that forms in the tube. what is the mass of the contents in the glass tube after mixing?
Answers: 2
Chemistry, 22.06.2019 07:00
Which set of characteristics best describes igneous rock? a) largest type of rock, made of organic matter, hardest type of rock b) least abundant type of rock, made of other rocks, made mostly of minerals c) found on all continents, contains wavy bands of stripes, contains fossils d) most abundant type in earth's crust, made of magma/lava, contains no fossils
Answers: 1
Chemistry, 22.06.2019 17:00
Astable electron arrangement for an atom is one that does not easily change. how is this arrangement arrived at? a. valence electrons are transferred or shared to create a full outer shell of electrons. b. valence electrons are discarded into space to create a full outer shell of electrons. c. protons (positive charge) pair with valence electrons (negative charge) to create a strong bond. d. outer shells with valence electrons are transferred or shared.
Answers: 2
Chemistry, 23.06.2019 07:00
Ajar contains a certain substance. which observation would show that the substance must be either a solid or a liquid?
Answers: 1
What are the properties of density? sorry for asking so many questions today....
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