![subject](/tpl/images/cats/himiya.png)
![ansver](/tpl/images/cats/User.png)
Answers: 3
Another question on Chemistry
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 12:00
the mississippians were considered to be horticulturalists, which means they were
Answers: 1
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 12:00
Which of the following is an example of physical change not a chemical change? a) a log gives off heat and light as it burns. b) a tree stores energy from the sun in its fruit. c) a penny lost in the grass slowly changes color. d) a water pipe freezes and cracks on a cold night.
Answers: 2
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 16:50
What is conserved in the reaction shown below? h2(g) + cl2 (g) --> 2hcl(g)a. mass onlyb. mass and moles onlyc. mass, moles, and molecules onlyd. mass, moles, molecules, and volume
Answers: 2
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 16:50
Answer asap need by wednesday morning explain how a buffer works, using an ethanoic acid/sodium ethanoate system including how the system resists changes in ph upon addition of a small amount of base and upon addition of a small amount of acid respectively. include the following calculations in your i. calculate the ph of a solution made by mixing 25cm3 0.1m ch3cooh and 40cm3 0.1m ch3coo-na+. [ka = 1.74 x 10-5 m] ii. calculate the ph following the addition of a 10cm3 portion of 0.08 m naoh to 500cm3 of this buffer solution. iii. calculate the ph following the addition of a 10cm3 portion of 0.08 m hcl to 200cm3 of the original buffer solution.
Answers: 1
You know the right answer?
What happens in terms of entropy when ammonia gas reacts with hydrogen chloride gas to form the soli...
Questions
![question](/tpl/images/cats/mat.png)
Mathematics, 31.03.2020 19:33
![question](/tpl/images/cats/biologiya.png)
Biology, 31.03.2020 19:33
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/en.png)
English, 31.03.2020 19:34
![question](/tpl/images/cats/mat.png)
Mathematics, 31.03.2020 19:34
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 31.03.2020 19:34
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/mkx.png)
Arts, 31.03.2020 19:34
![question](/tpl/images/cats/istoriya.png)
History, 31.03.2020 19:34
![question](/tpl/images/cats/biologiya.png)
Biology, 31.03.2020 19:34
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/istoriya.png)
History, 31.03.2020 19:34
![question](/tpl/images/cats/mat.png)
Mathematics, 31.03.2020 19:34
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 31.03.2020 19:34
![question](/tpl/images/cats/mat.png)
Mathematics, 31.03.2020 19:34
![question](/tpl/images/cats/mat.png)
Mathematics, 31.03.2020 19:34