Chap-1

Question 1

Ion bond

Answer 1

exchange caion with the anion within one atom

Question 2

1 sugar cube

Answer 2

4g,1 teaspoon

Question 3

Sugar alcohol

Answer 3

A type of sugar substitute; include sorbitol, mannitol, lactitol, erythritol,

Question 4

Human body

Answer 4

Oxygen carbon, hydrogen nitrogen

Question 5

Hydrogen bond

Answer 5

• A hydrogen bond is formed when a weakly positive hydrogen atom a bonded to one electronegative atom (for example, the oxygen in the molecule) is attracted to another electronegative atom from another molecule.

Question 6

Exergonic

Answer 6

• Chemical reactions that release more energy than they absorb are characterized as exergonic.

Question 7

Undergone

Answer 7

• Chemical reactions that absorb more energy than they release are endergonic.

Question 8

Activation energy

Answer 8

The threshold level of energy needed to break the bonds in the reactants

Question 9

Factors that influence the rate of reactions:

Answer 9

• Properties of reactants such as surface area and reactivity
• Temperature
• Concentration and pressure
• Enzymes and other catalysts