Which pH indicates a substance that is more acidic than a substance with a pH of 4

In a study of the conversion of methane to other fuels, a chemical engineer mixes gaseous methane and gaseous water in a 0.778 L flask at 1,072 K. At equilibrium, the flask contains 0.206 mol of CO gas, 0.187 mol of H2 gas, and 0.187 mol of methane.

Carbon disulfide burns in oxygen to yield carbon dioxide and sulfur dioxide according to the chemical equation cs2 (ℓ) + 3 o2 (g) - → co2 (g) + 2 so2 (g). if 1.25 mol of cs2 is combined with 0.57 mol of o2, identify the limiting reactant.

If you had a sample containing 55 alpha particles, how many protons would be present in that sample? Show all necessary work.

If 6.42 g of water is produced, how many grams of oxygen gas reacted?

Atoms are incredibly small and we cannot see them, even with very powerful microscopes. If we cannot see them, then how do we know they are there?

How are the components of the electromagnetic spectrum, from radio waves to gamma rays, grouped? Group of answer choices according to their wavelength according to their speed according to their visibility according to their velocity

Which two of the following elements would you expect to be most similar: nitrogen, chlorine, barium, fluorine, and sulfur?

Which statement best describes control rods? They are unmovable pieces. They are inert. They supply neutrons to start the nuclear chain reaction. They drive the generator

A large rift valley can be found along the east coast of Africa. It has been slowly widening over time, and it is now wide enough to contain many large lakes. Which of these best explains the slow widening of this rift valley over time? A.

How does the density of aluminum compare with the density of gold