One difference between mixtures and pure substances is that A)mixtures can be physically separated.
B)mixtures are made of one type of atom.
C)pure substances have no chemical bonds.
D)pure substances can be physically separated.

Brad and his family like to go camping. they always take a gas lantern with them. the lantern can take fiuels but always puts out the same amount of light. brad has two different kinds of fuel for the lantern. how can he figure out which kind of fuel has more chemical energy that the lantern can turn into light? measure the brightness of the lantern using each kind of fuel by comparing it to the full moon. g measure the volume of the containers of fuel. measure how long the lantern stays lit on a fixed amount of fuel. measure the mass of each container of fuel using a balance scale. answer 12

The best solution for preventing harm to people and pets from severe hurricanes involves determining and warning residents about what

Astudent reacts 13 moles of iron with 21 moles of oxygen according to the following equation: