You have 100 mL of 0.250M KMnO4. If you transfer 12.9mL of this solution to an Erlenmeyer flask and add 75.0mL of water, what is the concentration of the solution in
the Erlenmeyer flask? What is the concentration of the solution in the original bottle?

- calcium has greater affinity to bond with electron receptors than hydrogen does and hence, it has the ability to replace hydrogen in most of its compounds.

- lithium has 2 valence electrons in the product because it can make only 1 bond with hydrogen. beryllium has 4 valence electrons in the product because it can only make 2 bonds. it has fewer electrons than neon and can react with electron donors. each hydrogen has 2 valence electrons, the same as helium.

- the covalent bond formed between carbon and hydrogen is polar because carbon is more electronegative than hydrogen and it attracts the bonded electron pair closer to itself, thus giving hydrogen a partial positive charge.

- a hydrogen bond is a relatively weak bond that hydrogen atoms make with the electronegative atoms nitrogen, oxygen or fluorine.

so the best choice is a.) 2 calcium (ca) atoms

the electron configuration that you gave me has 16 electrons ergo it has 16 protons ergo it is the element sulfur.

it’s previous models   because when i picked that son of a gun’s answer it was wrong look for previous models because they might make it a different letter