Chemistry, 05.05.2021 09:00 antoniomunoz424
A substance was analysed and was found to have a boiling point of 450 °C.
At room temperature it is a soft grey solid.
Which temperature could be the melting point of a pure sample of the substance?
А
-12 °C
B
56 °C to 72 °C
с
250 °C to 275 °C
D
142 °C
Answers: 1
Chemistry, 21.06.2019 13:00
What type of reaction is represented by the following example? 2co2 (g) + 4h2o (l) + 1452 kj 2ch3oh (l) (g) + 3o2 (g) exothermic endothermic
Answers: 1
Chemistry, 22.06.2019 23:30
Match each statement with the state of matter it describes
Answers: 3
Chemistry, 23.06.2019 00:20
What type of context clue you understand the meaning of quandary?
Answers: 3
Chemistry, 23.06.2019 02:30
When the ionic compound nabr dissolves in water, br– ions are pulled into solution by the attraction between what two particles? a. the na+ and br– ions b. the na+ ion and the negative end of a water molecule c. the br– ion and the positive end of a water molecule d. the br– ion and the negative end of a water molecule
Answers: 1
A substance was analysed and was found to have a boiling point of 450 °C.
At room temperature it i...
Social Studies, 13.03.2021 04:50
Arts, 13.03.2021 04:50
Biology, 13.03.2021 04:50
English, 13.03.2021 04:50
Mathematics, 13.03.2021 04:50
Mathematics, 13.03.2021 04:50
Mathematics, 13.03.2021 04:50
Mathematics, 13.03.2021 04:50
Mathematics, 13.03.2021 04:50