Answer: The structure of
1-Butyne is shown below and it contains;
Nine Sigma Bonds Two Pi Bonds
Explanation:
In given structure the sigma bonds are highlighted with blue colour and pi bonds are highlighted by Black colour and indicated by red arrows.
Remember the very first covalent bond between two atoms is always the sigma bond. After formation of sigma bond if further p orbitals with unpaired electrons are available they will form pi bond, or two pi bonds as in given scenario.
Answer:
Four
Explanation:
P has five valence electrons. It can form bonds to three other atoms (like H) to form a triangular pyramidal molecule with a lone pair on the P atom.
If P atoms are to form bonds with each other, we can get a stable arrangement by putting each atom at the corner of a tetrahedron.
In a P₄ molecule, each atom still has three bonds and a lone pair.
Answer:
C. 2.4 M
Explanation:
Because you started with 12M solution of KCl, that means that there was a concentration of 12 mols of KCl per Liter of solution. (12mol/1L =12 M). Since there was only 0.5L of solution, there was only 6 mols of KCl because there is only 12 mols per 1 Liter, so half of that volume would have half the amount of solute to keep that true. (6mol/.5L = 12 M). With the new water added, the formula becomes (6mols KCl/ 2.5L of water =2.4 M)
I don’t understand the question completely, but reproduction in any case is important because it makes more of the product
Chromosomes abnormalities often happen due to one or more of these:
Errors during of sex cells (meiosis)
Errors during of other cells(mitosis)
Substances that causes birth defects (teratogens)