To determine how a technology might affect the environment from the time it is made, sold, and used to the time it must be disposed of, engineers make
a(n)

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.

Which statement is true about this reaction? 14n+1h 15o it is a practical source of energy on earth. it occurs only outside the solar system. its product is heavier than each of its reactants. it shows the critical mass of an element.

Anyone who's in connections academy chemistry b have the factors that affect the rate of a reaction portfolio already done?