Chemistry, 09.04.2021 18:50 datzmypupppup
Which sound frequency with a human ear be able to detect? Select ALL correct answers.
100 Hertz
1,000 Hertz
10,000 Hertz
100, 000 Hertz
The answers are 100, 1,000, 10,000 if your are with K12
Answers: 2
Chemistry, 22.06.2019 19:20, evansh78
Consider hydrogen in an excited state n = 5n=5 that emits photons to reach the ground state. there are various possible transitions other than straight to the ground state that can occur; for example, it can drop to the n = 3n=3 state followed by the n = 3n=3 to the ground state transition. which of the possible transitions will result in the emission of a photon in the visible region?
Answers: 3
Chemistry, 23.06.2019 12:40, ashlpiriz123
During an experiment, ice and water were placed in a perfectly insulated thermos flask at 0 °c. describe this system when it phase reaches equilibrium.
Answers: 1
Chemistry, 23.06.2019 14:00, cfonse11
Which is not true regarding reaction rates? (2 points) catalysts are not used up in the reaction. catalysts speed up reactions by lowering the activation energy. reaction rates decrease as the concentration of reactants decrease. during reactions, concentrations of all reactants decrease at the same rate.
Answers: 1
Chemistry, 24.06.2019 03:00, Wisppah3474
How many electrons does silver have to give up in order to achieve a pseudo-noble-gas electron a. 1 b. 2 c. 3 d. 4
Answers: 2
Which sound frequency with a human ear be able to detect? Select ALL correct answers.
100 Hertz
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