Name the bond that forms when 2 sugar molecules are covalently bonded

The answer is glycosidic linkage.

That is glycosidic linkage is the bond that forms when 2 sugar molecules are covalently bonded.

Glycosidic bond or glycosidic linkage is a type of covalent bond that forms when 1 sugar molecules or  carbohydrate molecule to bind to another group, which may or may not be another carbohydrate.

1. 1 mole of anything contains 6.022x10^23 pieces  

d  

2. a  

3. c, number  

5. 1.24x10^24atoms / 6.022x10^23atoms/mole = 2moles h2 atoms  

6. fe2br3 mass = 2moles x mass fe + 3 moles x mass br  

molar mass = grams / number of moles = g/mole  

to find moles = g / molar mass  

to find mass = g = molar mass / moles

your answer is a. the enthalpy of formation for a pure element in its standard state is always positive.