Two glucose molecules are bonded together through a dehydration reaction to form a disaccharide called maltose. the molecular formula of glucose is c6h12o6. what is the molecular formula of maltose?

Idon't understand what to put on the left lines i'm confused can anyone ?

Three cards with holes are arranged in a straight line. a light is shined through the first card’s hole and travels through all three cards. what does this tell you about light rays? a) that light is reflected b) that light is refractive c) that light travels in a straight line d) that light does not travel in a straight line

Use this information to determine the number of calends electrons in the atoms. which of the following correctly compares the stability of the two atoms? a) both are unreactive b) both are highly reactive c) a is unreactive and d is reactive d) a is reactive and d is unreactive