Chemistry, 14.07.2020 17:01, CutiePie8960
. Explain with examples following characteristics of chemical reactions: a. Change of colour b. Evolution of gas c. Change of smell d. Change of state
Answers: 3
Chemistry, 22.06.2019 05:30, madisonrosamond99
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 13:30, citlalli30
1) which of the following is the best example of a physical change? a) sugar dissolving in tea b) firefly glowing 2) in the combustion of ethane, what is/are the reactants? c2h6 + o2 ==> co2 + h2o a) c2h6 and o2 b) co2 and c2h6
Answers: 2
Chemistry, 22.06.2019 23:00, brianfranklin17
What is the correct lewis dot structure for arsenic?
Answers: 2
. Explain with examples following characteristics of chemical reactions:
a. Change of colour b....
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