Cavendish prepared hydrogen in 1766 by the novel method of passing steam through a red-hot gun barrel:

4H2O (g) + 3Fe (s) ⟶Fe3O4 (s) + 4H2 (g) 4H2O (g) + 3Fe (s) ⟶Fe3O4 (s) + 4H2 (g)

What type of reaction is Zn + CuCl2 → Cu + ZnCl2? O A. Decomposition O O O B. Double-replacement c. Synthesis D. Single-replacement

A grapefruit has a weight on earth of 4.9 newtons. what is grapefruit's mass

A sample of gold (Au) has a mass of 45.39 g. a. What is the molar mass of gold? b. Calculate the number of moles of gold (Au) in the sample. Show your work. c. Calculate the number of atoms of gold (Au) in the sample. Show your work.

Calculate the mass of ethyl alcohol required to prepare 540 grams of C4H6, if the reaction follows the scheme: 2C2H5OH-CH2=C4H6+2H2O+H2

What volume (in mililiters) of oxygen gas is required to react with 4.03 g of my at stp

32 g of sulfur will react with 48 g of oxygen to produce 80 g of sulfur trioxide. if 20 g of sulfur and 100 g of oxygen are placed into a sealed container and allowed to react, what is the mass of sulfur trioxide in the container after the reaction

Water exhibits high levels of cohesion due to the polarity of the molecule (positively and negatively charged sides). given this information, which type of bond is responsible for water's cohesion and which atoms interact to form this bond?

scientist have found many marine fossils on the mountain far from any ocean or sea what is the best explanation for these fossils

The change in energy needed to change the state of a substance is

What is the main goal of sustainable agriculture? A. To rely heavily on mechanization, pesticides, and fertilizers B. To produce cheap and abundant food at a high cost C. To feed a growing world without damaging the ecosystem D.