Cho 1 luồng khid CO có thể tích ở điều kiện tiêu chuẩn là 8,96 lít đi chậm qua 16 gam bột hỗn hợp X gồm Fe2O3 và CuO nung nóng . khi phản ứng xảy ra hoàn toàn thu được chất rắn A hỗn hợp khí B có tỉ khối của B so với H2 là 19 a, viết các phương trình hóa học xảy ra
b, tính khối lượng chất rắn A
c, tính phần trăm khối lượng mỗi oxit trong hỗn hợp ban đầu

true

explanation:

who knows

the tides are influenced by both the moon and the sun, it's easy to see that when the sun lines up with the moon and the earth, as during a new moon or full moon, the tidal effect is increased. these are known as spring tides, named not for the season, but for the fact that the water "springs" higher than normal. on the other hand, if the sun and the moon are 90 degrees apart in relation to an observer on earth as during the first quarter moon or third quarter moon, then high tides are not as high as they normally would be. this is because despite its greater distance, the sun's mass allows it to exert enough gravitational force on the oceans that it can negate some of the effects of the moon's pull. this phenomenon of lower high tides is called a neap tide. if you need more information on this topic visit moonconnection.com.

chemical digestion occurs in the stomach were hcl and pepsin forms chyme, the mouth in which salivary amylase breaks down starch to form bolus, and the small intestine specifically the duodenum.