subject
Chemistry, 10.10.2019 02:50 dbhuggybearow6jng

When did life first appear in earths oceans?

ansver
Answers: 2

Another question on Chemistry

question
Chemistry, 22.06.2019 19:50
If a gas has an initial pressure of 101kpa and a volume of 10l, then it expands to a volume of 20l, what is the new pressure?
Answers: 2
question
Chemistry, 23.06.2019 00:00
(04.05 hc) analyze the given diagram of the carbon cycle below. part 1: which compound does c represent? part 2: name a process that could release this compound into the air. part 3: explain how the elements that form it are conserved during the carbon cycle. use complete sentences to explain your answer. justify how this compound was created from a recycling of carbon in the carbon cycle. use complete sentences to explain your answer.
Answers: 3
question
Chemistry, 23.06.2019 10:20
El amoniaco y el fluor reaccionan para formar tetrafluoruro de dinitrogeno y fluoruro de hidrogeno. segun la reaccion: nh3 + f2 ⇒ n2f4 + hf si reaccionan 5 gramos de amoniaco y 20 gramos de fuor, ¿cuantos gramos de fluoruro de hidrogeno se producen?
Answers: 2
question
Chemistry, 23.06.2019 17:30
Which of the following elements would you expect to have the highest ionization energy value, and why? a. chlorine (cl), because it has a low effective nuclear charge and large radius b. fluorine (f), because it has a large radius and naturally forms a negative ion c. lithium (li), because it has a small radius and naturally forms a positive ion d. neon (ne), because it has a high effective nuclear charge and small radius
Answers: 2
You know the right answer?
When did life first appear in earths oceans?...
Questions
question
English, 14.07.2020 02:01
question
English, 14.07.2020 02:01
question
Mathematics, 14.07.2020 02:01
question
Mathematics, 14.07.2020 02:01
question
Mathematics, 14.07.2020 02:01
question
Mathematics, 14.07.2020 02:01