Chemistry, 01.11.2019 17:31 denaemarie02
1) how much volume would 2.00 moles of gas take up, under standard temperature and pressure conditions?
11.2 l
22.4 l
33.6 l
44.8 l
2) using the equation, c5h12 + 8o2 → 5co2 + 6h2o, if an excess of pentane (c5h12) were supplied, but only 4 moles of oxygen were available, how many moles of water would be produced?
1 mole
2 moles
3 moles
6 moles
3) the formation of sodium hydroxide occurs by adding sodium to water in this reaction:
2na + 2h2o → 2naoh + h2
a byproduct of the reaction is hydrogen gas. if 69 grams of sodium fully reacts with water, how many grams of h2 gas are produced?
1.0 gram
2.0 grams
3.0 grams
6.0 grams
Answers: 2
Chemistry, 22.06.2019 09:40
Apiece of copper has a temperature of 75.6 0c. when the metal is placed in 100.0 grams of water at 19.1 0c, the temperature rises by 5.5 0c. what is the mass of the metal?
Answers: 1
Chemistry, 22.06.2019 17:30
The polymer used for the nonstick surface of cooking utensils is 24.0%c and 76%f by mass. what is the empirical formula of this polymer?
Answers: 2
Chemistry, 22.06.2019 18:00
Hydrogenation reactions, in which h2 and an "unsaturated" organic compound combine, are used in the food, fuel, and polymer industries. in the simplest case, ethene (c2h4) and h2 form ethane (c2h6). if 140 kj is given off per mole of c2h4 reacting, how much heat (in mj) is released when 12 kg of c2h6 forms?
Answers: 2
Chemistry, 22.06.2019 19:00
Structure of the atoms: discovery of the nucleus in 1909i need answering all of these questions
Answers: 3
1) how much volume would 2.00 moles of gas take up, under standard temperature and pressure conditio...
Mathematics, 01.09.2021 01:00
Mathematics, 01.09.2021 01:00
English, 01.09.2021 01:00
Business, 01.09.2021 01:00
Social Studies, 01.09.2021 01:00
Biology, 01.09.2021 01:00