Có 4 lọ A, B,C, D chứa các chất như sau: metyl axetat, andehit propionic, axit propionic, rượu 1-propanol, biết: -Lọ A và B khi cho tác dụng với Na giải phóng khí H2
-Lọ A có nhiệt độ sôi cao nhất
-Lọ C phản ứng được với dung dịch Ag/NO3
a) Xác định các hóa chất đựng trong lọ A, B,C, D
b) Viết phương trình phản ứng

If a solution is considered basic, then a) the hydroxide ion and hydronium ion concentrations are equal. b) the hydroxide ion concentration is less than the hydronium ion concentration. c) the hydronium ion concentration is greater than the hydroxide ion concentration. d) the hydroxide ion concentration is greater than the hydronium ion concentration.

Which set of characteristics best describes igneous rock? a) largest type of rock, made of organic matter, hardest type of rock b) least abundant type of rock, made of other rocks, made mostly of minerals c) found on all continents, contains wavy bands of stripes, contains fossils d) most abundant type in earth's crust, made of magma/lava, contains no fossils

Which of these expressions are correct variations of the combined gas law? p1v1t2 = p2v2t1 both