![ansver](/tpl/images/cats/User.png)
Answers: 2
Another question on Chemistry
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 04:30
How many grams of co(g) are there in 74.5 ml of the gas at 0.933 atm and 30o c?
Answers: 1
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 11:40
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
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 16:00
If 15 drops of ethanol from a medical dropper weight 0.60g, how many drops does it takes from a dropper to dispense 1.0ml of ethanol? the density of ethanol is 0.80g/ml
Answers: 1
You know the right answer?
How to find formal charge...
Questions
![question](/tpl/images/cats/informatica.png)
Computers and Technology, 09.12.2020 01:00
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/en.png)
English, 09.12.2020 01:00
![question](/tpl/images/cats/istoriya.png)
History, 09.12.2020 01:00
![question](/tpl/images/cats/en.png)
English, 09.12.2020 01:00
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 09.12.2020 01:00
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/obshestvoznanie.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 09.12.2020 01:00
![question](/tpl/images/cats/informatica.png)
Computers and Technology, 09.12.2020 01:00
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/fr.png)
![question](/tpl/images/cats/obshestvoznanie.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 09.12.2020 01:00
![question](/tpl/images/cats/mat.png)
Mathematics, 09.12.2020 01:00
![question](/tpl/images/cats/fr.png)
French, 09.12.2020 01:00
![question](/tpl/images/cats/mat.png)
Mathematics, 09.12.2020 01:00