Answers: 2
Chemistry, 22.06.2019 16:00
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, 22.06.2019 18:00
Answer asap need to be answered by wednesday morning explain how a buffer works, using an ethanoic acid / sodium ethanoate system including how the system resists changes in ph upon addition of a small amount of base and upon addition of a small amount of acid respectively. include the following calculations in your i. calculate the ph of a solution made by mixing 25cm3 0.1m ch3cooh and 40cm3 0.1m ch3coo-na+. [ka = 1.74 x 10-5 m] ii. calculate the ph following the addition of a 10cm3 portion of 0.08 m naoh to 500cm3 of this buffer solution. iii. calculate the ph following the addition of a 10cm3 portion of 0.08 m hcl to 200cm3 of the original buffer solution.
Answers: 3
Chemistry, 22.06.2019 23:30
Why do oxygen have a strong attractive force for electrons
Answers: 2
Another real-world example of a change is rust. rust is iron oxide (fe2o3), which results when iron...
History, 17.10.2020 14:01
Mathematics, 17.10.2020 14:01
English, 17.10.2020 14:01
English, 17.10.2020 14:01
Mathematics, 17.10.2020 14:01
English, 17.10.2020 14:01
Mathematics, 17.10.2020 14:01
English, 17.10.2020 14:01
Chemistry, 17.10.2020 14:01