If a sample of 400g of ammonium chlorate is taken, how many grams of chlorine can be extracted from the sample?

Second Question:
- When decomposed, a sample of mercury (I) carbonate yields 40 g of carbon. What is the
mass of mercury (I) carbonate, given that all carbon from the sample was extracted
without losing any mass of carbon?

PLEASE SOMEONE HELP ASAP IM BEGGING I NEED THIS TURNED IN BY 10:30!!

african americans demonstrated their newly found freedom by relocating often in search of relatives whom they had been separated from during slavery. others established schools to educate freed people and they built institutions such as churches and political organizations to advocate for their rights.

the answer for sodium is 0.186

the answer for rubidium is 0.251

its first and third is your answer i did the qustion the fourth isnt right

answer:

the answer is 6 valence electrons.

explanation:

valence is the # of electrons on the outer most shell of an atom.

oxygen has 6.

although, the valency of oxygen is 2, because it only needs to make 2 covalent bonds, or gain 2 electrons, to achieve the stable octet configuration of a noble gas.

that's it!

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