Pls answer this ASAP
...
Answers: 3
Chemistry, 22.06.2019 08:40
Ageologist determines that a sample of a mineral can't be scratched by a steel nail but can be scratched by a masonry drill bit. based on this information, the sample mineral has to be softer than a. orthoclase. b. fluorite. c. apatite. d. corundum.
Answers: 2
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, 23.06.2019 05:30
According to thomson, the atom is a positively charged cloud with electrons scattered throughout. what would the alpha particles do when they hit the foil if thomson were correct
Answers: 1
Chemistry, 23.06.2019 09:10
A155.0 9 piece of copper at 182 °c is dropped into 2500 g of water at 23.9 °c. (the specific heat of copper is 0.385 1/9°c.) calculate the final temperature of the mixture. (assume no heat loss to the surroundings.)
Answers: 2
Mathematics, 06.05.2021 02:10
Social Studies, 06.05.2021 02:10
Mathematics, 06.05.2021 02:10
Biology, 06.05.2021 02:10
History, 06.05.2021 02:10
Physics, 06.05.2021 02:10
Mathematics, 06.05.2021 02:10