Answer:
D. El Parque Nacional Yellowstone pronto estará bajo un nuevo liderazgo
what is the answer choices
To find out the electronegativity of each pair, work it out by listing them.
H = 2.2
S = 2.1
N = 3.0
Cl = 3.0
O = 3.5
C = 2.5
H – S -> 2.2 - 2.1 = 0.1
H – Cl -> 2.2 - 3.0 = -0.8
N – H -> 3.0 - 2.2 = 0.8
O – H -> 3.5 - 2.2 = 1.3
C – H-> 2.5 - 2.2 = 0.3
So, the pairs that has the highest electronegativity is H-Cl and N-H.
The answer is B. All plant cells have cell walls while animal cells do not.
Oxygen locks onto a molecule called hemoglobin in the red blood cells. The newly oxygenated blood leaves the lungs through the pulmonary veins and heads back to the heart. It enters the heart in the left atrium, then fills the left ventricle so it can be pumped into the systemic circulation.
