![subject](/tpl/images/cats/himiya.png)
Chemistry, 09.07.2019 18:00 F00Dislife
Pls i need to pass in physical science lab, kim and dawn added small pieces of magnesium to hydrochloric acid. they observed that bubbles formed, the test tube got hot, and the magnesium disappeared. what is a sign that a chemical reaction has taken place in this experiment? question 7 options: a. odor b. gas is produced c. temperature decreasedd. magnesium appeared
![ansver](/tpl/images/cats/User.png)
Answers: 1
Another question on Chemistry
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 04:30
What are the primary responsibilities of a chemical engineer involved in "r& d"? develop large scale manufacturing operations discover new products and processes training of new chemists determine products needed by consumers
Answers: 2
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/himiya.png)
Chemistry, 23.06.2019 00:30
When did stem cell research become known ? who discovered stem cell? what experiments or studies have been conducted so far?
Answers: 3
![question](/tpl/images/cats/himiya.png)
Chemistry, 23.06.2019 04:10
In an experiment, 45g of silicon tetrachloride are treated with 45ml of water. what is the theoretical yield in grams of hcl
Answers: 3
You know the right answer?
Pls i need to pass in physical science lab, kim and dawn added small pieces of magnesium to hydroc...
Questions
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/es.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/es.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/en.png)
English, 28.07.2020 14:01
![question](/tpl/images/cats/es.png)
![question](/tpl/images/cats/es.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 28.07.2020 14:01
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/es.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/health.png)
![question](/tpl/images/cats/en.png)