![subject](/tpl/images/cats/himiya.png)
Chemistry, 06.05.2020 04:24 blondesaturn
Write this number in ordinary form 7.2261 x 10^-7 A)0.0000727 B) 0.00000072661 C) 72661000 D) 0.0000000736
![ansver](/tpl/images/cats/User.png)
Answers: 1
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Other questions on the subject: Chemistry
![image](/tpl/images/cats/himiya.png)
Chemistry, 21.06.2019 22:20, andybiersack154
Asolution is made by dissolving 25.5 grams of glucose (c6h12o6) in 398 grams of water. what is the freezing point depression of the solvent if the freezing point constant is -1.86 °c/m? show all of the work needed to solve this problem.
Answers: 1
![image](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 00:30, shadekashakay
Asolution of sodium hydroxide was titrated against a solution of sulfuric acid. how many moles of sodium hydroxide would react with 1 mole of sulfuric acid?
Answers: 2
![image](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 11:40, Wemaybewrong
Modern pennies are composed of zinc coated with copper. a student determines the mass of a penny to be 2.482 g and then makes several scratches in the copper coaling (to expose the underlying zinc). the student puts the scratched penny in hydrochloric acid, where the following reaction occurs between the zinc and the hcl (the copper remains undissolved): zn(s) + 2 hcl(aq) → h2(g) + zncl(aq)the student collects the hydrogen produced over water at 25 °c. the collected gas occupies a volume of 0.899 l at a total pressure of 79 j mmhg. calculate the percent zinc (by mass) in the penny. (assume that all the zn in the penny dissolves.)
Answers: 1
![image](/tpl/images/cats/himiya.png)
You know the right answer?
Write this number in ordinary form 7.2261 x 10^-7 A)0.0000727 B) 0.00000072661 C) 72661000 D) 0.0000...
Questions in other subjects:
![Konu](/tpl/images/cats/istoriya.png)
History, 17.10.2020 21:01
![Konu](/tpl/images/cats/mat.png)
![Konu](/tpl/images/cats/ekonomika.png)
![Konu](/tpl/images/cats/mat.png)
Mathematics, 17.10.2020 21:01
![Konu](/tpl/images/cats/mat.png)
Mathematics, 17.10.2020 21:01
![Konu](/tpl/images/cats/mat.png)
![Konu](/tpl/images/cats/istoriya.png)
![Konu](/tpl/images/cats/istoriya.png)
History, 17.10.2020 21:01
![Konu](/tpl/images/cats/mat.png)
Mathematics, 17.10.2020 21:01
![Konu](/tpl/images/cats/en.png)
English, 17.10.2020 21:01