Chemistry, 24.11.2020 16:30 payshencec21
The diagram below shows earth as viewed from space as it moves around the sun approximately how long does it take earth to move from position a to position b?
A. 6 months
B.12 hours
C. 1 year
D. 1 day
Answers: 1
Chemistry, 21.06.2019 22:30
Which statement best describes the oxidation numbers of the atoms found in magnesium chloride? a. magnesium has a 2- oxidation number and chlorine has a 1+ oxidation number. b. magnesium has a 2- oxidation number and chlorine has a 2+ oxidation number. c. magnesium has a 2+ oxidation number and chlorine has a 1- oxidation number. d. magnesium has a 1+ oxidation number and chlorine has a 1- oxidation number.
Answers: 2
Chemistry, 22.06.2019 14:00
What term describes technology that operates on an atomic level
Answers: 2
Chemistry, 23.06.2019 20:10
Based on the law of superposition, which layer of sedimentary rock is the oldest?
Answers: 1
Chemistry, 24.06.2019 00:40
Areaction involves burning. this reaction requires energy to start, but it releases more energy than is required to start it. oxygen is always a reactant, and the products are usually carbon dioxide and water. a reaction occurs when a compound breaks down. this reaction has one reactant and two or more products. energy, as from a battery, is usually needed to break the compound apart. a reaction occurs when two substances combine to form one substance. an example of this kind of reaction is rusting, in which iron reacts with oxygen. a reaction that involves the replacement of atoms is a reaction. an atom from one reactant replaces an atom in the other reactant. this kind of reaction has two reactants and two products. an example is the neutralization of an acid and an alkali.
Answers: 1
The diagram below shows earth as viewed from space as it moves around the sun approximately how long...
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