Answer:
D
Explanation:
The electrons revolve around the nucleus and they contain negative charge
Answer is B.
As the diaphragm contracts and flattens, it increases the volume of the thorax where the lungs are located. This results in a decrease in pressure (Boyle’s Law, if you know it) that creates a pressure gradient from outside to inside. This is what causes air to move into the lungs.
C. A nearly identical image.
Answer:
119836.8 km
Explanation:
74 898 miles * 1.6 km / mile = 119836.8 km
Answer:
The formula for calculating pH is pH=−log[H_3O+ ]
pH is the negative logarithm (to base 10) of hydronium ion concentration
The pH Formula can also be expressed as
PH= - log[H+ ]