The number of proton, neutrons and electrons in oxygen atom

Which of the following statements about Dalton's atomic theory is true? Dalton's theory recognized that all matter is composed of atoms. Dalton's theory recognized the existence of smaller particles within atoms.

The pH of a solution is measured as 5.9. What is the hydrogen ion concentration of the solution? A. 1.3 x 10-6 M B. 7.9 x 105 M C. 5.9 M D. 5.0 x 10-9 M

How would you solve, Phosphorus 32 has a half life of 14.0 days. Starting with 2.00g of 32P, how many grams will remain after 112 days

Write the equilibrium constant expression for the reaction below. CS2 (g) + 4H2O (g) ⇌ CH4 (g) + 2H2S (g)

Given the balanced equation 4al s 3o2 g which type of chemical reaction is shown

What is the difference between the crest of a longitudinal wave and the crest of a transverse wave?

How is a pure substance different than a mixture

What is emitted from most manufactured building materials and furniture?

What is kinetic energy related to? A. heat B. position C. motion D. electricity

Mizar is a star system that is composed of two pairs of stars, mizar A and mizar B, or four stars in total. What do astronomers call a system that is composed of more than two starts?