Answers: 2
Chemistry, 21.06.2019 19:30
The crust of earth may a- continets and ocean floors. b-continents only. c-layers of sedimentary rocks and continents. d-all of the above
Answers: 2
Chemistry, 22.06.2019 10:00
Which sentence about particles in matter is true? a. atoms are present in solids and liquids but not in gases. b. the particles of matter are in constant motion. c. the same kinds of atoms are found in different elements. d. when a solid changes to a liquid, the sizes of the particles change.
Answers: 1
Chemistry, 22.06.2019 10:30
Acompound has a molar mass of 92.02 grams/mole, and its percent composition is 30.4% nitrogen (n) and 69.6% oxygen (o). what is its molecular formula? a. n2o4 b. no2 c. n2o d. n4o2
Answers: 1
Chemistry, 22.06.2019 12:30
A50.0 ml sample of gas at 20.0 atm of pressure is compressed to 40.0 atm of pressure at constant temperature. what is the new volume? 0.0100 ml 0.325 ml 25.0 ml 100. ml
Answers: 1
Difference between Electron Proton and Neutron?...
Mathematics, 18.12.2020 04:00
Computers and Technology, 18.12.2020 04:00
Mathematics, 18.12.2020 04:00
History, 18.12.2020 04:00
History, 18.12.2020 04:00
English, 18.12.2020 04:00
English, 18.12.2020 04:00
English, 18.12.2020 04:00
English, 18.12.2020 04:00
Mathematics, 18.12.2020 04:00