As long as the shipper certificate is signed the low does not need to be inspected by the driver prior to leaving the shipper true or false

Which sentence about particles in matter is true? a. atoms are present in solids and liquids but not in gases. b. the particles of matter are in constant motion. c. the same kinds of atoms are found in different elements. d. when a solid changes to a liquid, the sizes of the particles change.

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

Which of these is not an example of chemical weathering? a. iron-rich mineral rusting b. feldspar turning into clay c. limestone reacting with acid d. granite breaking up into sand