Chemistry, 09.12.2020 03:50 pierrezonra
1. Complete the following paragraph by highlighting the correct responses (10 pts). In this experiment, the ions in the salts were initially in the (ground, excited) state. When placed in the flame, the ions then (absorbed, emitted) energy as (electricity, heat, EM radiation). When this occurred, electrons made transitions from (low, high) energy levels to (low, high) energy levels. The ions were then in the (ground, excited) state. The electrons in these ions then made transitions from (low, high) energy levels to (low, high) energy levels, resulting in the (absorption, emission) of energy as (electricity, heat, EM radiation).
Answers: 3
Chemistry, 21.06.2019 22:30
Which supports the idea that birds and butterflies both have wings but they do not have a common ancestor with wings? a. the wings are analogous structures that evolved differently and do not have a similar internal structure. b. the wings are homologous structures that evolved differently and do not have a similar internal structure. c. wings of birds are vestigial structures, but the wing structures of bats are not vestigial. d. wings of bats are vestigial structures, but the wing structures of birds are not vestigial
Answers: 1
Chemistry, 21.06.2019 22:30
For the following, determine the type of reaction and then give products.
Answers: 2
Chemistry, 22.06.2019 10:30
Aglow stick contains a glass vial with chemicals. when the glow stick is bent, the vial breaks and the chemicals react to produce a glow. a science student observes that a glow stick kept in the freezer glows for a longer duration than a glow stick kept at room temperature. what conclusion can be drawn based on the observation? be sure to note the outcome and test variables in the conclusion.
Answers: 1
1. Complete the following paragraph by highlighting the correct responses (10 pts).
In this experim...
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