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.

Magnesium and nitrogen react in a combination reaction to produce magnesium nitride. 3 mg + n2? mg3n2. in a particular experiment, a 9.27 g sample of n2 reacts completely. the mass of mg consumed is

1.86 g H2 is allowed to react with 9.75 g N2, producing 2.87g NH3. A. What is the theoretical yield in grams for this reaction under the given conditions? B. What is the percent yield for this reaction under the given conditions?

What forces hold network solids together?

Is concrete a homogeneous or heterogeneous mixture?

Explain, in detail, how you convert grams of one substance to grams of something else. Be specific and include each step

A gas is located inside a closed container. if the gas is allowed to occupy more volume inside the container, what will happen to the pressure? (note: there is no gas added to the container.)

An open-end manometer containing mercury was connected to a vessel holding a gas at a pressure of 767 torr. The atmospheric pressure was 724 torr. What is the difference in the heights of the mercury, expressed in cm?

When does raising the temperature of a gas increase its pressure? A. temperature B. volume C. number of particles D. pressure

Hexyne. What does the name of this hydrocarbon tell you about its molecular structure?

Which of the following processes includes all of the others? Group of answer choices transport of an ion down its electrochemical gradient osmosis passive transport facilitated diffusion