Câu 1 Đun nóng este HCOOCH3 với một lượng vừa đủ dung dịch NaOH, sản phẩm thu được là
A

CH3COONa và C2H5OH.
B

HCOONa và C2H5OH.
C

HCOONa và CH3OH.

D

CH3COONa và CH3OH

How hot is the suns corona? (integrated science)

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.

Does the number of ions in solution increase, decrease, or remain constant? it continuously decreases. it continuously increases. it decreases at first, then increases. it increases at first, then decreases.