Chemistry, 30.10.2020 19:20, GreenHerbz206
When an asteroid hit the Earth 65 million years ago, it threw a huge amount of dust into the atmosphere. This dust cloud stayed in the sky, blocking out the Sun for at least 10 years. Why did most of the animals on the Earth go extinct at this time?
A. The dust cloud prevented plants from making food
B. The asteroid started fires that burned the Earth
C. The Sun turned off
Answers: 1
Chemistry, 22.06.2019 12:00, zamariahyou
A5.000 g sample of niso4 h2o decomposed to give 2.755 g of anhydrous niso4. what is the formula of the hydrate? what is the full chemical name for the hydrate? what is the molar mass of the hydrate? niso4•_h2o what is the mass % of water in the hydrate?
Answers: 1
Chemistry, 22.06.2019 17:30, tiffanyhmptn
Which scenario is most similar to the type of collision that gas particles have according to kinetic molecular theory
Answers: 1
When an asteroid hit the Earth 65 million years ago, it threw a huge amount of dust into the atmosph...
Mathematics, 12.03.2020 06:14