![subject](/tpl/images/cats/himiya.png)
Chemistry, 21.07.2019 20:10 noahslambeenie359
Which substance is a gas at 20˚c and one atmosphere of pressure? a. c b. o3 c. ca d. i2
![ansver](/tpl/images/cats/User.png)
Answers: 1
Another question on Chemistry
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 08:00
What are the similarities of physical and chemical change ?
Answers: 1
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 16:30
Ammonium perchlorate nh4clo4 is the solid rocket fuel used by the u.s. space shuttle. it reacts with itself to produce nitrogen gas n2 , chlorine gas cl2 , oxygen gas o2 , water h2o , and a great deal of energy. what mass of nitrogen gas is produced by the reaction of 2.1g of ammonium perchlorate?
Answers: 2
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 19:30
Which liquid (h2o, h2o + soap, or h2o + salt) has the strongest cohesion and adhesion? (need now plz)
Answers: 1
![question](/tpl/images/cats/himiya.png)
Chemistry, 23.06.2019 06:40
The combustion of methane, ch4, releases 890.4kj/mol. that is, when one mole of methane is burned,890.4 kj are given off to the surroundings. this meansthat the products have 890.4 kj less than the reactants.thus, ah for the reaction = - 890.4 kj. a negative symbolforah indicates an exothermic reaction.ch (g) + 20 (g)> co2 (g) + 2 h0 (1); ah = - 890.4 kga) how much energy is given off when 2.00 mol of ch,are burned? b) how much energy is released when 22.4g of ch. areburned?
Answers: 1
You know the right answer?
Which substance is a gas at 20˚c and one atmosphere of pressure? a. c b. o3 c. ca d. i2...
Questions
![question](/tpl/images/cats/health.png)
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.07.2019 20:50
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/ekonomika.png)
Business, 22.07.2019 20:50
![question](/tpl/images/cats/en.png)
English, 22.07.2019 20:50
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 22.07.2019 20:50
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/en.png)
English, 22.07.2019 20:50
![question](/tpl/images/cats/mat.png)
Mathematics, 22.07.2019 20:50
![question](/tpl/images/cats/informatica.png)
Computers and Technology, 22.07.2019 20:50
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 22.07.2019 20:50
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 22.07.2019 20:50
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/biologiya.png)