![subject](/tpl/images/cats/himiya.png)
Chemistry, 29.10.2020 21:50 aprilkenedy12
Phosphorus-32 has a half life of 14 days. If we begin with 40 mg how much is left after 42 days?
![ansver](/tpl/images/cats/User.png)
Answers: 3
![](/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 16:30
10-14. (a) when 100.0 ml of weak acid ha were titrated with 0.093 81 m naoh, 27.63 ml were required to reach the equivalence point. find the molarity of ha. (b) what is the formal concentration of a- at the equivalence point? (c) the ph at the equivalence point was 10.99. find pk. for ha. (d) what was the ph when only 19.47 ml of naoh had been added?
Answers: 1
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 06:00
An alkaline battery produces electrical energy according to the following equation. zn(s) + 2 mno2(s) + h2o(l) zn(oh)2(s) + mn2o3(s) (a) determine the limiting reactant if 17.5 g zn and 31.0 g mno2 are used. (type your answer using the format ch4 for ch4.) (b) determine the mass of zn(oh)2 produced. _ g
Answers: 3
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 10:30
Astudent reacts 13 moles of iron with 21 moles of oxygen according to the following equation:
Answers: 1
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 10:30
Which describes fat? a: a carbohydrate that produces energy b: a nucleic acid that directs cell function c: a lipid that stores energy d: a protein that speeds up a chemical reaction
Answers: 1
You know the right answer?
Phosphorus-32 has a half life of 14 days. If we begin with 40 mg how much is left after 42 days?...
Questions
![question](/tpl/images/cats/User.png)
![question](/tpl/images/cats/fizika.png)
Physics, 06.03.2022 04:30
![question](/tpl/images/cats/mat.png)
Mathematics, 06.03.2022 04:30
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 06.03.2022 04:40
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 06.03.2022 04:40
![question](/tpl/images/cats/istoriya.png)
History, 06.03.2022 04:40
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 06.03.2022 04:40
![question](/tpl/images/cats/mat.png)
Mathematics, 06.03.2022 04:40
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/biologiya.png)
Biology, 06.03.2022 04:40
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/geografiya.png)
Geography, 06.03.2022 04:40