Which of the following results when iron and oxygen react? 1. fe2o3 corrodes 2. hydrated iron forms 3. iron oxide forms 4. a shiny metal forms 5. o2 dissolves in water

The proportion of dissolved substances in seawater is usually expressed in

What fraction of a sample of 6832ge, whose half-life is about 9 months, will remain after 2.9 yr?

Elements in the same blank on the periodic table have the same number of valence electrons

The atom with the same number of neutrons as 12c is

The volume of a gas is 650. ml at 1.14celsius what will the volume be at 75.0 Celsius?

In which reaction is mass converted to energy by the process of fission?

Watch It! #3 After watching the examples in the video of radiation, list 2 other examples that you come up with on your own.

Tear gas has the composition 40.25% carbon, 6.19% hydrogen, 8.94% oxygen, 44.62% bromine. what is the empirical formula of this compound?

Explain why ships traveling from east to west across the Atlantic take days longer than ships traveling the same distance from west to east.

In a titration 25.0 ml of a. 20 M NaOH solution is used to neutralize 10.0 ml of HCl. Write the equation for this neutralization reaction and calculate the molarity of the acid.