Small opening in the epidermis of a leaf called guard cells allow water and other materials to enter and exit the leaf. true or false ?

Consider the elements bromine and chlorine; which elements has a larger ionic radius ?

Which symbol can be used to indicate the pressure at which a chemical reaction is carried out? 25°c 2 atm pa

Write and balance the chemical equation that represents the reaction of aqueous sulfuric acid with aqueous sodium hydroxide to form water and sodium sulfate. include phases.