Glucose generally exists in ring (cyclic) form. a haworth projection shows the orientations of the hydroxyl groups and the hydrogen atoms on the ring. draw the α and the β forms of glucose by placing the groups ( h , oh , or ch 2 oh ) in the appropriate positions.
the answer is cohesive
cacl₂ is the chemical formula of calcium chloride, and its molar mass is 110.983 g/mol. it is an ionic compound comprising two chlorine anions and calcium cation. the bivalent calcium metal produces an ionic bond with two chlorine atoms. calcium chloride is found in nature in its hydrated forms. it also occurs in huge concentrations in natural brine from salt deposits and salt lakes.
calcium chloride is found as granules or flakes, as an odorless white powder. it exhibits a melting point of 782 degree celsius, density of 2.15 g/ml, and a high boiling point of over 1600 degree celsius.
a. four c–h single bonds and two o=o double bonds.
explanation:the chemical reaction proceeds with breaking bonds in the reacting molecules and forming new bonds in the products.in this reaction four single bonds are broken in ch₄ and two double bonds o=o are broken in two molecules of o₂.also, two double bonds c=o are formed in co₂ molecules and 4 single bonds o–h are formed in 2 molecules of h₂o (each molecule contain 2 new bonds).so, a is the right answer.