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Galina-37 [17]
2 years ago
7

How many grams of aluminum are necessary to produce 11 L of hydrogen gas at STP?? PLEASE HELP

Chemistry
2 answers:
-BARSIC- [3]2 years ago
6 0
9.0 grams will produce 11 L of hydrogen
lys-0071 [83]2 years ago
5 0

Answer:

8.8

Explanation:

You can view more details on each measurement unit: molecular weight of Aluminum or grams The molecular formula for Aluminum is Al. The SI base unit for the amount of substance is the mole. 1 mole is equal to 1 mole of Aluminum.

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Two solid samples each contain sulfur, oxygen, and sodium, only. These samples have the same color, melting point, density, and
katovenus [111]
<span>The correct answer is 1. compound. There are three elements and not just one so it's not element. Mixtures wouldn't have the same properties that you described but these do so it's a compounds. Solution is not a solid thing but rather a liquid one. The two samples are therefore compounds.</span>
7 0
3 years ago
* I’ll give you brainlist* The skeletal system has many functions. Which of the following body functions does the skeletal syste
velikii [3]

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3 years ago
g Calculate the theoretical yield (in grams) of your product if you start with 0.50 grams of E-stilbene. The molecular weight of
sattari [20]

Answer:

0.9433g

Explanation:

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Assuming the reaction is 1:1, we need to find the moles of E-stilbene (Reactant). If all reactant reacts, the moles of E-stilbene = Moles of product.

Using the molar mass of the product we can find the theoretical yield as follows:

<em>Moles E-stilbene:</em>

0.50g * (1mol/180.25g) = 0.00277 moles = Moles Product

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0.00277 moles * (340.058g/mol) = 0.9433g

4 0
3 years ago
A ____________ star would have the hottest surface temperature.
Alexandra [31]

Answer:

Blue

Explanation:

If you look at a flame, blue is always at the bottom right? So that would be common sense that blue would be the hottest.

7 0
3 years ago
Read 2 more answers
Why do scientists sometimes discard theories?
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Because they get new pieces of information from experiments
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