Hòa tan hoàn toàn 2,7g All vào 500ml dụng dịch axit sulfuric nồng độ 1M. a) Tính khối lượng muối tạo thành sau phản ứng
b) Tính thể tích khí sinh ra
​

Chromosome 17 is made of over million base pairs.

What would be the original temperature of a gas that has a volume of 2.0 l and a pressure of 2.0 atm and an unknown temperature that the volume increased to 3.5 l in its pressure decreased to 1.0 atm if the final temperature is measured to be 11°c

Which of the following observations indicates that an atom has neutrons? some uncharged particles are scattered by a beryllium atom when it hits a gold foil. some uncharged particles bounce back from a gold foil when it is bombarded with alpha particles. a radiation consisting of uncharged particles is emitted when alpha particles strike beryllium atoms. a radiation which attracts electrons is produced when a beryllium atom is bombarded with alpha particles.