Chemistry, 30.07.2019 05:30 kenleighbrooke67
Fossils provide evidence that 1) life on earth millions of years ago was more complex than life is today 2) the changes that will occur in species in the future are easy to predict 3)many species of organisms that lived long ago are now extinct 4)most species of organisms that lived long ago are exactly same today
Answers: 1
Chemistry, 22.06.2019 04:30
Use the periodic table to determine the electron configuration of dysprosium (dy) and americium (am) in noble-gas notation.
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Chemistry, 22.06.2019 14:20
Which of the following are sources of revenue for media companies? a. direct sales to producers b.advertising and subscriptions c. online purchase d. capital investments
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Chemistry, 23.06.2019 02:00
Pinene is an unsaturated hydrocarbon found in pine resin. if pinene has m+ = 136 and contains 1 double bond(s) and 2 ring(s); what is its molecular formula? enter the formula in the form ch first, then all other atoms in alphabetical order; do not use subscripts. the formula is case-sensitive
Answers: 3
Chemistry, 23.06.2019 03:00
Asample of sea water contains 6.28g of sodium chloride per litre of solution. how many milligrams of sodium chloride would be contained in 15.0ml of this solution?
Answers: 3
Fossils provide evidence that 1) life on earth millions of years ago was more complex than life is t...
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