How many moles of H2So4 are in 2.50 L of 4.25 M aqueous solution?

Is helium malleable (bendable), ductile (shiny), or brittle?

An organic compound contains C=61%, H=11.8% and O=27.12%. Calculate the empirical formula and molecular formula of the compound. The vapour density of the compound is 59.

Entropy is greater at higher trophic levels than at lower levels ... True of False

Silver's weighted average atomic mass is 107.86, leading one to assume that its most abundant isotope would be silver-108 (or 108Ag). Silver does have two naturally occurring isotopes, but 108Ag is not one of them.

What is the name for NiCO3 • 4H2O

Which of the following describes a critical component of a "fair test"? A fair test should include several confounders. A fair test will always support the scientist's hypothesis. A fair test should have a specific methodology for data collection.

Exponatial notation is used for a / writing very small numbers b/writing very large numbers c/avoid tedious work d/all above

Match each feature created by erosion to the correct description | a channel of connected grooves created by runoff stream one of many channels that connect to form a river tributary a small groove in soil created by runoff gully CH a series of

Which of the following statements regarding bond energies is FALSE A All chemical bonds are hard to break B Some chemical bonds are easier to break than others.

As a substance changes phase from a gas to a liquid to a solid, with the exception of H2O, the molecules become closer together? true or false