3 years ago

Passage of the Social Security Act (1935) helped

1 answer:

3 0

Passage of the Social Security Act (1935) helped American workers by "(4) providing financial assistance after retirement" It still does this to this day for many.

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Question 4 (1 point)

wlad13 [49]

The answer would be A

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3 years ago

Definition of mass number

riadik2000 [5.3K]

The total number of protons and neutrons in a nucleus

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3 years ago

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What is the percent composition of Sb2F3.What is the percent composition of F in this molecule? Round the answer to five signifi

poizon [28]

Answer:

$\%F=18.967\%$

Explanation:

Hello,

In this case, a percent composition is computed by considering the atomic mass of each element in the compound as well as the number of atoms and the molar mass of the compound. Thus, Sb2F3 has a molar mass of 300.52 g/mol, antimony has an atomic mass of 121.76 g/mol and fluorine 19.0 g/mol, therefore, the percent composition of fluorine which has three atoms with five significant figures is:

$\% F=\frac{3*19.0g/mol}{300.52g/mol}*100\%\\ \\\%F=18.967\%$

Best regards.

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3 years ago

What is the formula for iron (II) sulfate hexahydrate?

Agata [3.3K]

The formula for iron (II) sulfate hexahydrate

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FeH12O10S

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3 years ago

Which type of molecule is octanal? A. Alcohol B. Ketone C. Amine D. Aldehyde

tia_tia [17]

It is an aldehyde.

the ending (al) tells you that. alcohols end in “ol”, ketones end in “one”, amines have 2 different ways of naming so i suggest finding which one you want to use, and aldehyde end in “al” :)

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2 years ago