Which substance has a chemical formula with the same ratio of metal ions to nonmetal ions as in potassium sulfide?

(1) sodium oxide

(2) sodium chloride

(3) magnesium oxide

(4) magnesium chloride

What causes the lines to look bent when viewed through the glass of water?

Consider the following equilibrium reaction having gaseous reactants and products. 4HCl + O2 ⇌ 2H2O + Cl2 Which of the following would result from increasing the volume of water vapors? The volume of hydrochloric acid increases.

How do we account for the great variety of substances in the world? how do we account for the great variety of substances in the world? most of these substances are organic compounds. atoms are incredibly small. the earth is 4.5 billion years old.

A gas cylinder contains 2.5 atm of ne, 0.8 atm of co2, and 3.4 atm of ar. what is the total pressure in the cylinder? g

What are molecules and what are they made of?

Which of the following changes would decrease the rate at which a solid solute dissolves in a liquid solvent? A. Decreasing pressure B. Decreasing surface area C. Increasing rate of stirring D. Increasing temperature

Helium, neon, and argon are examples of A) metals B) metalloids C) noble gases D) transitional metals

How many moles of MgS2O3 are in 201 g of the compound

What is the process of discovery that allows us to link abservations with actual facts? Science Inquiry Mathematics Repetition

Elastic energy is stored when an object is stretched. Is this an example of potential or kinetic energy? A. Neither B. Both d C. Kinetic O D. Potential Reset Selection