What are the safety procedures for ta ting and smelling substance in the science room.

Why does a compound have characteristic properties?

Urgent! The gasoline smell from the gas station is classified as: Gas, Vapor, or Aerosol?

A student performs an experiment that produces solid sodium chloride. He uses four different catalysts and lets the reaction run for two minutes, and then removes the sodium chloride product.

Which of the following is not equal to 46.3 meters? A. 46,300 mm B. 0.463 hm C. 4630 cm D. 0.00463 km

Câu 1: Trong phân tử este (X) no, đơn chức, mạch hở có thành phần oxi chiếm 36,36 % khối lượng. Số đồng phân bố tạo của X là A. 4. B. 5. C. 2. D. 3.

Sodium chloride is stirred into water to form a solution. in this case, what are sodium chloride and the water?

What can form as a result of a chemical reaction?

A solution of orange juice that weighs 500 g contains liquid juice and solid pulp. All of the pulp is removed from the juice. The pulp is found to weigh 50 g. How much would the remaining liquid juice weigh? A. 50 g B. 250 g C. 450 g D. 500 g

Assume 3 molecules of Fe react according to the following equation. 3Fe + 4H2O Fe3O4 + 4H2 How many molecules of H2 are produced? How many water molecules are required? What is the mole ratio of Fe to H2O?

10.0 mL of a HF solution was titrated with a 0.120 N solution of KOH; 29.6 mL of KOH were required to completely neutralize the HF. Calculate the normality of the HF solution.