Which of the following is a chemical change?
A.)Butter melts
B.)Metal rusts....
Chemistry, 03.04.2020 20:56 krudmagreaner
Which of the following is a chemical change?
A.)Butter melts
B.)Metal rusts.
C.)Water boils.
D.)Things dissolve.
Answers: 1
Chemistry, 22.06.2019 00:30
Used the balanced equation 2h2+ o2 - -> 2h2o. if you have 7.2 grams of o2 , how many grams of h2o can you produce ?
Answers: 2
Chemistry, 22.06.2019 16:50
Answer asap need 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: 1
Chemistry, 22.06.2019 17:40
If 3 moles of a compound use 24 j of energy in a reaction, what is the a hreaction in j/mol?
Answers: 1
Mathematics, 22.07.2020 08:01
Mathematics, 22.07.2020 08:01
Mathematics, 22.07.2020 09:01
Mathematics, 22.07.2020 09:01
Mathematics, 22.07.2020 09:01