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frosja888 [35]
2 years ago
5

WHOEVER ANSWERS GETS BRAINLIEST!! (im not lying its facts)

Chemistry
2 answers:
storchak [24]2 years ago
4 0

Answer:

The answer to your question is D. 25 grams.

Assoli18 [71]2 years ago
3 0

Answer

22 grams hope this helps

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Is a hollow tube that serves as passageway of air into the luns
KIM [24]

Answer:

The air that we breathe in enters the nose or mouth, flows through the throat (pharynx) and voice box (larynx) and enters the windpipe (trachea). The trachea divides into two hollow tubes called bronchi

Explanation:

7 0
2 years ago
An unknown compound is processed using elemental analysis and found to contain 117.4g of platinum 28.91 carbon and 33.71g nitrog
dlinn [17]

Answer:

1 mole of platinum

Explanation:

To obtain the number of mole(s) of platinum present, we need to determine the empirical formula for the compound.

The empirical formula for the compound can be obtained as follow:

Platinum (Pt) = 117.4 g

Carbon (C) = 28.91 g

Nitrogen (N) = 33.71 g

Divide by their molar mass

Pt = 117.4 / 195 = 0.602

C = 28.91 / 12 = 2.409

N = 33.71 / 14 = 2.408

Divide by the smallest

Pt = 0.602 / 0.602 = 1

C = 2.409 / 0.602 = 4

N = 2.408 / 0.602 = 4

The empirical formula for the compound is PtC₄N₄ => Pt(CN)₄

From the formula of the compound (i.e Pt(CN)₄), we can see clearly that the compound contains 1 mole of platinum.

8 0
3 years ago
i need help i have a homework assignment to finish and this is the last question help please and thank u
Jet001 [13]
A
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5 0
3 years ago
The smallest particle of an element is a(n) .<br>atom<br>molecule<br>DNA​
mamaluj [8]

Answer:

An atom is the smallest particle of an element

5 0
2 years ago
Explain, in terms of electrons, why the bonding in strontium sulfide, SrS, is similar to the bonding in magnesium bromide, MgBr2
Aleksandr-060686 [28]

Answer: both compounds have ionic bond between metal and non-metal

Explanation: both Sr and Mg are earth alkaline metals and form ions Mg^2+

And Sr^2+. Br forms ion Br^- and S ion is S^2+.

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3 years ago
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