Chemistry, 24.11.2020 05:30, arayah1888
3. What causes the colors observed during flame tests? (1 point)
Protons are changing energy levels.
Electrons are changing energy levels.
New chemical bonds are forming.
Existing chemical bonds are breaking.
Answers: 3
Chemistry, 22.06.2019 03:50, Pizzapegasus1
Express the following number in scientific notation. 0.026890 =
Answers: 1
Chemistry, 22.06.2019 20:30, huangjianhe135
The activation energy for the reaction no2(g)+co2(g)⟶no(g)+co(g) is ea = 300 kj/mol and the change in enthalpy for the reaction is δh = -100 kj/mol . what is the activation energy for the reverse reaction?
Answers: 3
3. What causes the colors observed during flame tests? (1 point)
Protons are changing energy levels...
Mathematics, 07.06.2020 00:03