The combustion of hydrogen gas in oxygen, is it an endothermic or exothermic process? Write a chemical reaction for this process

Water has many exceptional and useful properties. Which is the rarest property among compounds? Water has many exceptional and useful properties. Which is the rarest property among compounds? Solid water is less dense than liquid water.

What type of water has a very low salinity content when compared to brackish and the ocean?

If the temperature of air in gabor's lungs is 37∘c (98.6∘f), and the volume is 6l, how many moles of air n must be released by the time he reaches the surface? let the molar gas constant be given by r = 8.31 jmol⋅k.

How does a jellyfish reproduce? explain the process and use the words polyp and medusa. hint my there are two stages of reproduction

What is the mass of 8.12 x 10^23 molecules of co2

True or False: According to the present atomic theory, the location of an electron in an atom is best represented by a probability cloud.

How can we measure the density of different wooden objects

According to molecular orbital theory, all diatomic molecules with an even number of electrons will be diamagnetic. True or False?

Which of the following equilibria would be impacted by a change in pressure? Select the correct answer below: H2 (g) + I2 (g) →2HI (g) NO (g) + O3 (g) →NO2 (g) + O2 (g) 2SO3 (g) →2SO2 (g) + O2 (g) CO (g) + H2O (g) →CO2 (g) + H2

A common stain remover is sold in concentrated form as 3M sodium hypochlorite (NaOCl). You need to create 400 milliliters of a 0.5M solution of sodium hypochlorite to fill a spray bottle. What volume of 3M sodium hypochlorite is needed? 15.0 mL 66.