An ecosystem includes the biotic and abiotic factors
true
false...
![subject](/tpl/images/cats/himiya.png)
Chemistry, 14.01.2020 07:31 bsmith892341
An ecosystem includes the biotic and abiotic factors
true
false
![ansver](/tpl/images/cats/User.png)
Answers: 2
![](/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 18:00
Answer asap need it by wednesday morning carry out the following calculations on ph and ka of from data. i. calculate the ph of 0.02m hcl ii. calculate the ph of 0.036m naoh iii. calculate the ph of 0.36m ca(oh)2 iv. calculate the ph of 0.16m ch3cooh which has ka = 1.74 x 10-5 mol dm-3 v. calculate ka for weak acid ha which has a ph of 3.65 at 0.30m concentration vi. calculate the ka of a solution made by mixing 15.0 cm3 0.2m ha and 60.0 cm3 0.31m a-. [ph= 3.80] vii. calculate the ph of a solution made by mixing 15.0 cm3 0.1m naoh and 35.0 cm3 0.2m hcooh. [ka = 1.82 x 10-4 m]
Answers: 1
![question](/tpl/images/cats/himiya.png)
Chemistry, 23.06.2019 01:00
Which fossil fuel is mainly used for heating and cooking? a. electricity b. coal c. petroleum d. natural gas
Answers: 2
![question](/tpl/images/cats/himiya.png)
Chemistry, 23.06.2019 01:00
If a sample of radioactive isotopes takes 600 minutes to decay from 400 grams to 50 grams, what is the half-life of the isotope?
Answers: 1
![question](/tpl/images/cats/himiya.png)
Chemistry, 23.06.2019 07:00
An unknown substance is a white solid at room temperature and has a melting point of 78 °c. which of the following substances is most likely to be the identity of the unknown sample?
Answers: 1
You know the right answer?
Questions
![question](/tpl/images/cats/informatica.png)
Computers and Technology, 03.11.2020 08:30
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/informatica.png)
Computers and Technology, 03.11.2020 08:40
![question](/tpl/images/cats/biologiya.png)
Biology, 03.11.2020 08:40
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 03.11.2020 08:40
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 03.11.2020 08:40
![question](/tpl/images/cats/geografiya.png)
![question](/tpl/images/cats/fizika.png)
Physics, 03.11.2020 08:40
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 03.11.2020 08:40
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/istoriya.png)
History, 03.11.2020 08:40
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 03.11.2020 08:40