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hoa [83]
3 years ago
12

Why was nutmeg also called the spice of madness

Chemistry
1 answer:
lapo4ka [179]3 years ago
8 0
It was called the “spice of madness” because it had an hallucinogenic property.
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How are elements with atomic masses greater than Uranium’s made?
JulsSmile [24]
Atoms heavier that uranium do not exist in nature.they must be synthesized in a particle accelerator.
7 0
3 years ago
If 28.0 grams of Pb(NO3)2 react with 18.0 grams of NaI, what mass of PbI2 can be produced? Pb(NO3)2 + NaI → PbI2 + NaNO3
ss7ja [257]

Answer:- 27.7 grams of PbI_2 are produced.

Solution:- The balanced equation is:

Pb(NO_3)_2+2NaI\rightarrow PbI_2+2NaNO_3

let's convert the grams of each reactant to moles and calculate the grams of the product and see which one gives least amount of the product. This least amount would be the answer as the least amount we get is from the limiting reactant.

Molar mass of Pb(NO_3)_2 = 207.2+2(14.01)+6(16)  = 331.22 gram per molmolar mass of NaI = 22.99+126.90 = 149.89 gram per molMolar mass of [tex]PbI_2 = 207.2+2(126.90) = 461 gram per mol

let's do the calculations for the grams of the product for the given grams of each of the reactant:

28.0gPb(NO_3)_2(\frac{1molPb(NO_3)_2}{331.22gPb(NO_3)_2})(\frac{1molPbI_2}{1molPb(NO_3)_2})(\frac{461gPbI_2}{1molPbI_2})

= 39.0gPbI_2

18.0gNaI(\frac{1molNaI}{149.89gNaI})(\frac{1molPbI_2}{2molNaI})(\frac{461gPbI_2}{1molPbI_2})

= 27.7gPbI_2

From above calculations, NaI gives least amount of PbI_2, so the answer is, 27.7 g of PbI_2 are produced.

8 0
3 years ago
The radioactive isotope used in the dating of fossils thought to be less than 40,000 years old is ________________.
Fantom [35]

Answer:

The answer is Radiocarbon

8 0
2 years ago
Give an example that shows energy transfer and another one that shows energy transformation.
solong [7]

Answer:

░░░░░▐▀█▀▌░░░░▀█▄░░░

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░░░░▄▄▄██▀▀▀▀░░░░░░░

░░░█▀▄▄▄█░▀▀░░

░░░▌░▄▄▄▐▌▀▀▀░░ This is Bob

▄░▐░░░▄▄░█░▀▀ ░░

▀█▌░░░▄░▀█▀░▀ ░░ Copy And Paste Him onto all of ur brainly answers

░░░░░░░▄▄▐▌▄▄░░░ So, He Can Take

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░░░░░░▐▌▀▄▀▄▀▐▄░░

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Explanation:

5 0
3 years ago
200cm3 of oxygen diffuse through a porous partition in 10 seconds. How long will it take 120cm3 of chlorine to diffuse through t
Lubov Fominskaja [6]
If 200cm^3 takes 10secs then 120 will take 6secs. i hope u understood
6 0
3 years ago
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