Hoà tan 4,4g fes vào 73g dd hcl 10%
a) tính khối lượng dd sau pứ
b) tính nồng độ % dd đó

How does decreasing the gas volume affect the pressure of a gas?

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.

Asubstance is a good conductor of electricity which of the following best explains a probable position of the substance in a periodic table