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LekaFEV [45]
3 years ago
5

the results have been archived so far in relation to the problem with the given fact relevant and measurable​

Chemistry
1 answer:
Rama09 [41]3 years ago
8 0
Where’s the problem I know how to do it
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Is Fe2O3+H2--2Fe+3H2O balanced or unbalanced?
NISA [10]

hydrogen is not balanced

the right balanced equation is

Fe2O3 + 3 H2 -> 2Fe + 3H2O

3 0
3 years ago
What is the molar mass of aluminum (Al)
Papessa [141]

Answer:

26.981539 u

Explanation:

One mole of Al atoms has a mass in grams that is numerically equivalent to the atomic mass of aluminum. The periodic table shows that the atomic mass (rounded to two decimal points) of Al is 26.98, so 1 mol of Al atoms has a mass of 26.98 g.

6 0
2 years ago
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How many moles of nitrogen gas will occupy a volume of .5L at 1.0atm and 298K
hammer [34]
 <span>Use the Ideal law Equation :

P.V= n.R.T 

V = 0.5 L

P = 1.0 atm

</span><span>R= 0.0821 L*atm/mol*K 
</span>
<span>n = R*T/P*V 

</span><span>P*V= n*R*T 
</span>
1.0 * 0.5 = n *<span>0.0821*298

0,5 = n* 24.4658

n = 0,5 / 24.4658

n =0.0204 moles


</span>
8 0
3 years ago
What are hydrated substances
Keith_Richards [23]

Answer:

Glauber's salt

washing soda

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True or false climatologist use weather balloon stethoscope and satellite
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False I think because they don't use balloons to check the weather
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3 years ago
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