Cho cho 8,4 gam sắt tác dụng với dung dịch HCl loãng vừa đủ a) Tính thể tích H2 thoát ra
b) Tính khối lượng muối thu được sau phản ứng
C) nếu dùng hết 200 mol dung dịch HCl thì nồng độ HCl là bao nhiêu

Achemist 16 drop copper metal from copper chloride solution. the chemist place is 0.50 g of aluminum foil in a solution containing 0.75 g of copper (ii) chloride. a single replacement reaction takes place. which statement explains the maximum amount of copper that the chemist can extract using this reaction?

Ageochemist examines a piece of metal that he found in the soil. he performs tests to identify the metal from its density, electrical conductivity, and melting point. which statement best describes his investigation? a. he is determining physical properties that are sufficient to identify the metal. b. he is determining chemical properties that are sufficient to identify the metal. c. he is determining physical properties that are insufficient to identify the metal. d. he is determining chemical properties that are insufficient to identify the metal.

Chlorophyll a had the molecular formula c55h72mgn4o5 how many atoms are in this molecule