![subject](/tpl/images/cats/himiya.png)
Chemistry, 31.12.2021 08:20 awkwardness92
Why is heptane used as the blank? why did the spectrometer need to be recalibrated?
![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, 22.06.2019 07:10
Remember to use the proper number of significant figures and leading zeros in all calculations.gelatin has a density of 1.27 g/cmÂł. if you have a blob of gelatin dessert that fills a 2.0 liter bottle, what is its mass? 2540 g2500 g3.9 x 10-43.937x 10-4
Answers: 3
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 09:00
This chart lists four kinds of polymers and their sources. what can be known about all four polymers, despite their differences? they come from living things. they share ionic carbon bonds. they are at least 100 monomers long. they are made of repeating subunits.
Answers: 1
![question](/tpl/images/cats/himiya.png)
Chemistry, 23.06.2019 01:00
How does carbon monoxide pose the greatest threat to humans? a. it can be produced by wood fires. b. it can be produced by home furnaces. c. it is produced by acid rain. d. it is produced by modern automobiles.
Answers: 2
![question](/tpl/images/cats/himiya.png)
Chemistry, 23.06.2019 01:30
Use the periodic table to determine how many grams of oxygen would be required to react completely with 859.0 g c2h2
Answers: 3
You know the right answer?
Why is heptane used as the blank? why did the spectrometer need to be recalibrated?...
Questions
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/informatica.png)
Computers and Technology, 23.04.2021 20:40
![question](/tpl/images/cats/mkx.png)
Arts, 23.04.2021 20:40
![question](/tpl/images/cats/mat.png)
Mathematics, 23.04.2021 20:40
![question](/tpl/images/cats/mat.png)
Mathematics, 23.04.2021 20:40
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 23.04.2021 20:40
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 23.04.2021 20:40
![question](/tpl/images/cats/mat.png)
Mathematics, 23.04.2021 20:40
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/es.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 23.04.2021 20:40
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 23.04.2021 20:40
![question](/tpl/images/cats/mat.png)
Mathematics, 23.04.2021 20:40