Answer: Compound are different than elements because compounds are combinations of 2 or more elements.
C. air, fire, water, earth. 4 elements
Answer: 1-Propene has
eight sigma bonds and
one pi bond.
Explanation: The lewis structure of 1-Propene is shown below. All sigma bonds are highlighted by
blue color and the pi bond is highlighted by
red color.
Carbon having four unpaired electrons in its excited state can form four covalent (sigma bonds) bonds. In given structure the orbitals containing unpaired electron in sp³ hybridized C undergo head to head overlap with three hydrogen atoms having single unpaired electron and orbital of other sp² hybridized carbon in same fashion. So, four sigma bonds are formed by sp³ hybridized carbon atom.
The doubly bonded carbon atoms also form sigma bond but two unpaired electrons of these two carbons undergo the formation of pi bond. This pi bond forms when the orbitals overlap along the plane perpendicular to the existing sigma bond resulting in the formation of single pi bond.
Answer:
The answer is B. Jeff pushes on his box with twice the amount of force since his box has 1/2 the mass of Jim's box.
hope it helps!
Answer:
202,020 pennies
Explanation:
The amount of pennies in 1 dollar is 100.
Basically, you just multiply the whole dollar amount (2020) by 100 and then add 20 to find the amount of pennies.
(2020)(100)+20= 202,000+20= 202,020 pennies.