![subject](/tpl/images/cats/himiya.png)
Chemistry, 12.08.2019 17:30 camosloppy3150
Round off each of the following numbers to two significant figures:
(a) 0.436
(b) 9.000
(c) 27.2
(d) 135
(e) 1.497 x 10-3
(f) 0.445
![ansver](/tpl/images/cats/User.png)
Answers: 1
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Another question on Chemistry
![question](/tpl/images/cats/himiya.png)
Chemistry, 21.06.2019 21:00
The earth's moon is unusually large. two popular theories of the moon's origin include the "sister world" hypothesis, which states that the moon formed from the same materials as the earth, near enough to the earth that they fell into orbit around each other. a second theory is the "capture" hypothesis, in which the moon formed elsewhere in the solar system, and the earth's gravity pulled it into its orbit. studies of what the moon is made of indicate that some of its materials had to come from the earth or from the same area of the solar system where the earth had formed. at the same time, the moon does not contain much of the material that makes up the earth's core, so the moon could not have formed from the same materials as the earth. how do the two facts above affect the described theories of the moon's origin? a. they show that scientists will never agree on where the moon came from. b. they show that more experiments on moon formation need to be done. c. they show that no theory accounts for the existence of the moon. d. they show that neither theory is complete and entirely correct.
Answers: 2
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 00:00
Draw the skeletal structures of two different molecules that are each made of 5 carbon atoms and 12 hydrogen atoms.
Answers: 1
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 10:30
Find the number of grams of hcl needed to react completely with .50 moles of magnesium.
Answers: 1
You know the right answer?
Round off each of the following numbers to two significant figures:
(a) 0.436
(b) 9.000...
(a) 0.436
(b) 9.000...
Questions
![question](/tpl/images/cats/informatica.png)
Computers and Technology, 18.07.2020 16:01
![question](/tpl/images/cats/informatica.png)
Computers and Technology, 18.07.2020 16:01
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 18.07.2020 16:01
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/informatica.png)
Computers and Technology, 18.07.2020 16:01
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/pravo.png)
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/User.png)
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/informatica.png)
Computers and Technology, 18.07.2020 16:01