The ANSWER is D
salt In water because it is a simple ion pair Na+1 and Cl-1
Hydrogen Fluoride is similar: H+1 and F-1 and since it is a polar ion pair too it dissolves in water
Answer:
Gas exchange occurs in microscopic dead-end air-filled sacs called alveoli, where a very thin membrane (called the blood-air barrier) separates the blood in the alveolar capillaries (in the walls of the alveoli) from the alveolar air in the sacs.
Explanation:
Answer:
The athlete should consume about 476 g of carbohydrates per day to maintain a good storage of glycogen in his body
Explanation:
For an athlete who trains daily, 5 to 7 g of carbohydrates per Kg of body weight per day is recommended;
∴ m athlete = (175 Lb)×(0.453592 Kg/Lb) = 79.3787 Kg
⇒ m carbohydrate = (79.3787 Kg)×( 6 g carbohydrate/ Kg.day) = 476.27 g carbohydrate/day
The correct answer is:
D) a chemical change produces a new substance by breaking and forming new bonds
Answer:
-1.5 N because 1.5 N would be upwards and -1.5 N would be downwards