b. F₂ have a polar covalent bond
Explanation:
The type of bond depends on the difference of the electronegativity of the two elements.
if the electronegativity difference is under 0.4 the bond is non-polar covalent
if the electronegativity difference is between 0.4 and 1.7 the bond is polar covalent
if the electronegativity difference is greater 1.7 the bond is ionic
a. HCl
electronegativity of Cl - electronegativity of H = 3 - 2.2 = 0.8, so the bond is polar covalent
b. F₂
electronegativity of F - electronegativity of F = 4 - 4 = 0 , so the bond is non-polar covalent
c. HF
electronegativity of F - electronegativity of H = 4 - 2.2 = 1.8, in this case because non-metals are involved in the bond we consider this to be a polar covalent bond.
d. ClF
electronegativity of F - electronegativity of Cl = 4 - 3 = 1, so the bond is polar covalent
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type of chemical bonds
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The classifying of organisms is called "Taxonomy" or the second option. Taxonomy mainly takes place with organisms although it could be used to classify anything. Taxonomy consists of a graph with eight categories all used to classify a living organism.
Hope this helps!
Explanation:
Newton's second law states the "net force on a body is the product of its mass and acceleration".
When a body has a net force acting on it, it will change position and begin to move.
Ordinarily, a car will not move until it is towed when the engine is faulty. The weight of the car and the frictional force of the tire acts to prevent its motion.
Now, the towing van supplies a force that is greater than the weight of the car and the frictional force between the tires. This way the towing van is able to move the faulty car.
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Answer:
When the Zebra arrived they ate all the food so the Unionid mussels declined as they died from the lack of food. Causing the Zebra Zebra numbers to increase and Unionid numbers to decline.
