The answer is c) 25 because the mass number is the # of protons and neutrons in the nucleus, therefor, 12 + 13 = 25
Answer:
42) 76
b)70
Explanation:
52) because you don't want to confuse different units. one ex)1cm is 1/ 100 of a meter
55) 1 km=1,000 meters
b) 10 decimterers = 1 meter
56)The SI standard for length is the meter the standard for volume is the cubic decimeter
ex) 1cm³=1mL
57) The two scales are the same. but there are no negative temperatures in Kelvin. 0 Kelvin is the lowest temperature possible.
0 Kelvin= -274.5 Celsius
Carbon monoxide poisoning occurs when a dangerous amount of carbon monoxide binds to hemoglobin and reduces the body's ability to use oxygen effectively in respiration
Explanation
Hemoglobin a protein in red blood cells binds oxygen in the lung and distribute it throughout the body.However Carbon monoxide is a very aggressive molecule., it has a greater affinity for hemoglobin than oxygen, thus it displaces oxygen and quickly binds therefore very little oxygen is transported through the body cells