Which particle of the atom has a positive charge?

A.

proton

B.

electron

C.

nucleus

D.

neutron

Os-182 has a half-life of 21.5 hours. How many grams of a 10.0 gram sample would have decayed after exactly three half-lives?

For which of the following solutions would an increase in pressure result in an increase in solubility of a solute? gas liquid solid gases, liquids and solids

Mark the statement as true or false. All of the proposed ideas by Dalton, Thompson, and Rutherford are still used in the Modern Theory of the Atom.

Water is boiled in a flask with a balloon over the top of the water gets the balloon expand what has happened to the weight of the Laskin balloon in this experiment

Mutualism is often the result of

A type of rock that undergoes changes because of heat and pressure

How many milliliters of a 1.25 molar HCL solution would be needed to react completely with 60 g of calcium metal Ca+2HCl - - > CaCl2 + H2

What mass of copper is required to replace silver from 4. oog ogre silver nitrate dissolved in water

What kind of bond would two nonmetals typically make?

Which statement best applies collision theory to preventing a dangerous reaction from occurring? Store the reactants together at a low pressure. Keep all sparks or flames away from the reactants. Store the reactants together at a low temperature.