A sulfur atom has 6 valence electrons. When a sulfur atom combines with hydrogen atoms, how many bonds are formed in the simplest molecule of sulfur and hydrogen atoms? A. 2 B. 3 C. 4 D. 6

A100-watt light bulb radiates energy at a rate of 100 j/s. (the watt, a unit of power or energy over time, is defined as 1 j/s.) if all of the light emitted has a wavelength of 525 nm , how many photons are emitted per second?

A5.000 g sample of niso4 h2o decomposed to give 2.755 g of anhydrous niso4. what is the formula of the hydrate? what is the full chemical name for the hydrate? what is the molar mass of the hydrate? niso4•_h2o what is the mass % of water in the hydrate?

In what environment would mineral formation caused by high pressures and high temperatures most likely occur?