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faust18 [17]
3 years ago
8

Which question can be answered by science? 1 which type of candy taste the best? 2 which backpack do students purchase most offe

n?
Chemistry
1 answer:
Rainbow [258]3 years ago
8 0

question 1 because youd have to run test to figure out what its made of

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Suppose that for the same 10.0 ml sample described in q3, the mass of the crucible with precipitate was 17.550 g, and the mass o
marusya05 [52]
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3 years ago
I need help in Chemistry
Komok [63]
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6 0
4 years ago
Is 8Ag2S → 16Ag + 1S8 a single replacement
Sveta_85 [38]
No it’s a decomposition reaction
Explanation:
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4 0
3 years ago
The atomic radius of a gold atom is 144×10^-12. The volume of a gold atom can be calculated using the volume of a sphere. The de
Alekssandra [29.7K]
Given:
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Mass of gold sample = 1.40 g = 1.4 x 10⁻³ kg

Calculate the volume of an atom. 
v = [(4π)/3]*(144 x 10⁻¹² m)³ = 1.2508 x 10⁻²⁹ m³

Calculate the mass of an atom.
m=(1.2508\tmes10^{-29}\,m^{3})*(19.3\times 10^{-3}\, \frac{kg}{cm^{3}} )*(10^{2}\, \frac{cm}{m})^{3} \\ = 2.4142 \times 10^{-25}  \, kg

Calculate the number of atoms in a sample of mass 1.40 g.
N =  \frac{1.40 \time 10^{-3} kg}{2.4142 \times 10^{-25} \,  \frac{kg}{atom} } =5.8 \times 10^{21} \, atoms

Answer:  5.8 x 10²¹ atoms
3 0
3 years ago
Which element is used as a rat poison and is found in the title of the murder mystery?
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The element that is used as a rat poison and found of the murder mystery is Arsenic.
Hope this helped you!
6 0
3 years ago
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