![Chemistry](/tpl/images/cats/himiya.png)
Chemistry, 11.04.2022 07:20, itscarterelliottt
PLEASE I NEED HELP
How long (in centimeters and years) was the Precambrian period compared to the rest of the scale?
How many years and “centimeters” of time separated the dinosaurs and humans on Earth?
How many years and centimeters of time passed before life appeared on Earth?
For how many years of geologic time have humans existed?
Did dinosaurs exist at the same time as mammals? Explain your answer using the geologic time scale.
![answer](/tpl/images/cats/otvet.png)
Answers: 2
Other questions on the subject: Chemistry
![image](/tpl/images/cats/himiya.png)
![image](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 13:50, awesomegamergurl13
What happens when an atom of sulfur combines with two atoms of chlorine to produce sci2? a. each chlorine atom shares a pair of electrons with the sulfur atom. b. an electron is transferred from each chlorine atom to the sulfur atom. c. an electron is transferred from the sulfur atom to each chlorine atom. d. each chlorine atom shares all its valence electrons with the sulfur atom.
Answers: 2
![image](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 14:30, Priskittles
What state of matter is ice a. liquid b. element c. solid d. gas
Answers: 1
![image](/tpl/images/cats/himiya.png)
Chemistry, 23.06.2019 01:30, jonmorton159
At a certain temperature the rate of this reaction is first order in hi with a rate constant of : 0.0632s2hig=h2g+i2g suppose a vessel contains hi at a concentration of 1.28m . calculate how long it takes for the concentration of hi to decrease to 17.0% of its initial value. you may assume no other reaction is important. round your answer to 2 significant digits.
Answers: 1
Do you know the correct answer?
PLEASE I NEED HELP
How long (in centimeters and years) was the Precambrian period compared to the...
Questions in other subjects:
![Konu](/tpl/images/cats/en.png)
![Konu](/tpl/images/cats/mat.png)
Mathematics, 09.12.2020 19:40
![Konu](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 09.12.2020 19:40
![Konu](/tpl/images/cats/en.png)
![Konu](/tpl/images/cats/mat.png)
Mathematics, 09.12.2020 19:40
![Konu](/tpl/images/cats/health.png)
![Konu](/tpl/images/cats/himiya.png)
![Konu](/tpl/images/cats/ekonomika.png)
![Konu](/tpl/images/cats/mat.png)
Mathematics, 09.12.2020 19:40
![Konu](/tpl/images/cats/mat.png)
Mathematics, 09.12.2020 19:40