What do fossils provide evidence for?
the history of life in the geologic past
why species be...
Chemistry, 04.02.2021 17:50 simmonss1185
What do fossils provide evidence for?
the history of life in the geologic past
why species became extinct in the past
0
developmental patterns of living organisms
the genetic similarities between living and extinct organisms
Answers: 1
Chemistry, 22.06.2019 02:10
When 225mg of anthracene, c14h10(s), was burned in a bomb calorimeter the temperature rose by 1.75k. calculate the calorimeter constant. by how much will the temperature rise when 125mg of phenol, c6h5oh(s), is burned in the calorimeter under the same conditions? (δch< (c14h10,s)=–7061 kj mol−1.)
Answers: 3
Chemistry, 22.06.2019 23:00
Consider the reaction: 2al(s) + fe2o3(s) → al2o3(s) + 2fe(s) the δhf for fe2o3(s) = -824.3 kj/mole. the δhf for al2o3(s) = -1675.7 kj/mole. finish the equation. δhrxn = [(1)( kj/mole) + (2)( kj/mole)] - [(1)( kj/mole) + (2) ( kj/mole)]
Answers: 1
Chemistry, 23.06.2019 04:00
What two categories of toxins were present in the air at dish,texas as a result of the gas pipelines that pass through the area
Answers: 1
Chemistry, 23.06.2019 06:00
Give one example of a pure (exact) number and of an estimated (measured) number.
Answers: 2
Social Studies, 03.01.2020 00:31
Mathematics, 03.01.2020 00:31
Health, 03.01.2020 00:31
Biology, 03.01.2020 00:31
Geography, 03.01.2020 00:31
Mathematics, 03.01.2020 00:31
History, 03.01.2020 00:31
Mathematics, 03.01.2020 00:31