A gas occupies 50.0 ml at standard temperature and pressure. if the volume of gas increases to 120ml, what is the new pressure

Which statements about the equation shown above are correct? Check all that apply. 2h2+02>2h20

For the decomposition of A to B and C, A (s) ⇌B (g) + C (g) how will the reaction respond to each of the following changes at equilibrium?

What is the density of ethane gas, C2H6 at STP

Water containing large amounts of Mg2+and Ca2+ions is said to be hard because it is hard to make soap lather in the water. True False

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

What does it mean for data to be continuous?

When an acid reacts with a base what compounds are formed? a. a salt only. b. water only. c. a salt and water. d. metal oxides only.?

What is the differences between River system, Tributary?

having that coloration is selected for since many predators will recognize it and stay away. Therefore the common coloration is beneficial to the butterflies and becomes more common. What type of selection is involved?

What organisms appeared on Earth First? a). gastropods b). horn corals c). brachiopods d). crinoids