Chemistry, 06.09.2020 05:01, andybiersack154
What the atomic number of an atom that has 30 neutrons and a mass number of A= 70
Answers: 1
Chemistry, 21.06.2019 13:00, kajjumiaialome
Note the ph and poh values labeled with letters on the ph scale below. based on log rules and the way ph is calculated, what is the difference in [oh– ] concentration between point a and point b. a) 10^1 b) 10^5 c) 10^6 d) 10^7
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Chemistry, 22.06.2019 16:00, hjgjlgkjg
Inside a flashbulb, oxygen surrounds a thin coil of magnesium. when the flashbulb is set off, a chemical reaction takes place in which magnesium combines with oxygen to form magnesium oxide. which of the chemical equations matches the reaction above? a. mg + o2 mgo2 + energy b. 2mg + o mg2o + energy c. 2mg + o2 2mgo + energy d. mg + o mgo + energy
Answers: 1
Chemistry, 23.06.2019 00:30, kylee65
What are the advantages of using the metric system? designed as a decimal system making conversions simpler more accurate system of measurement has prefixes that correspond to an amount to use with all base units used by the entire scientific community
Answers: 2
What the atomic number of an atom that has 30 neutrons and a mass number of A= 70...
Biology, 22.11.2019 06:31