![subject](/tpl/images/cats/himiya.png)
Chemistry, 26.10.2019 11:43 gabbym39077
What does the law of conservation of mass state?
mass cannot be created nor destroyed in a chemical reaction
mass can be created but not destroyed in a chemical reaction.
mass can be destroyed but not created during a chemical reaction.
mass can be created and destroyed during a chemical reaction.
![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, 22.06.2019 13:00
Lab reagent, hypothesis test.a reference solution used as a lab reagent is purported to have a concentration of 5 mg/dl. six samples are taken from this solution and the following concentrations are recorded: (5.32, 4.88, 5.10, 4.73, 5.15, 4.75) mg/dl.these six measurements are assumed to be an srs of all possible measurements from solution.they are also assumed to have a standard deviation of 0.2, a normal distributin, and a mean concentration equal to the true concentration of the solution.carry out a significance test to determine whether these six measurements provide reliable evidence that the true concentration of the solution is actually not 5 mg/dl.
Answers: 1
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/himiya.png)
Chemistry, 23.06.2019 01:00
Na chemical reaction, activation energy increases the of the reactants. this outcome causes the particles to collide, which results in the of new products.
Answers: 2
![question](/tpl/images/cats/himiya.png)
Chemistry, 23.06.2019 06:30
Acompound has the molecular formula c3h8. which class of organic compounds does it belong to?
Answers: 2
You know the right answer?
What does the law of conservation of mass state?
mass cannot be created nor destroyed i...
mass cannot be created nor destroyed i...
Questions
![question](/tpl/images/cats/himiya.png)
Chemistry, 11.12.2021 14:00
![question](/tpl/images/cats/en.png)
English, 11.12.2021 14:00
![question](/tpl/images/cats/mat.png)
Mathematics, 11.12.2021 14:00
![question](/tpl/images/cats/mat.png)
Mathematics, 11.12.2021 14:00
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/pravo.png)
Law, 11.12.2021 14:00
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mkx.png)
Arts, 11.12.2021 14:00
![question](/tpl/images/cats/istoriya.png)
History, 11.12.2021 14:00
![question](/tpl/images/cats/mir.png)
World Languages, 11.12.2021 14:00
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 11.12.2021 14:00
![question](/tpl/images/cats/mat.png)
Mathematics, 11.12.2021 14:00
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 11.12.2021 14:00
![question](/tpl/images/cats/pravo.png)
Law, 11.12.2021 14:00
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/en.png)