What would 42,857.14285714286 be written as in scientific notation? : \

I think 4.285714285714286*10^4

step one is you have to turn w.e. number you have into a number between 1 and 10, so in this case 4.285714285714286

and then you have to count how many times you moved the decimal place over, so in this case 4 times so you put 4 as the power to the base of 10

so 42,857.14285714286 as a scientific notation is 4.285714285714286*10^4

- 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 answer is 0.42 is that is an option. this question provides no info