Given the balanced equation representing a

1 answer:

5 0

From the coefficients of the equation, we see that for every 4 moles of aluminum consumed, 3 moles of oxygen are consumed.

So, the answer is (12/4)(3) = 9 moles.

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Pls helllllpppppp!!!!! how was the interior of the atom was experimentally dicovered?

emmainna [20.7K]

Answer:

Thomson's experiments with cathode ray tubes showed that all atoms contain tiny negatively charged subatomic particles or electrons. Thomson's plum pudding model of the atom had negatively-charged electrons embedded within a positively-charged "soup."

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3 years ago

How many moles of gas occupy 98 l at a pressure of 2.8 atmospheres and a temperature of 292 k?

Furkat [3]

From the ideal gas equation, we know that PV = nRT
where, P = pressure, V = volume occupied, n = number of moles of gas, R = universal gas constant=0.082L atm mol-1 K-1 and T = temperature.
Given: P = 2.8 atm, V = 98 l and T = 292 k.
Therefore n = $\frac{PV}{RT}$ = $\frac{2.8 X 98}{0.082 X 292}$ = 11.46

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3 years ago

Due to lower atmospheric pressure at high altitudes, water boils at 92°C instead of 100°C. How will this difference affect cooki

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4 years ago

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How many aluminum atoms are in 2.26 g of aluminum?

ki77a [65]

Answer:

Aluminum atoms are in 3.78 g of aluminum

02214076x10^23)8.4367659370640769254888x10^22 atoms, therefore there are 8.4367659370640769254888x10^22 atoms of Aluminum(Al) present in 3.78 grams of Aluminum(Al).

Explanation:

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3 years ago

The hydrogen ion concentration, [H+], in a certain cleaning compound is left bracket Upper H Superscript plus Baseline right

labwork [276]

Answer: The pH of the cleaning compound is 10.44

Explanation:

pH is defined as the negative logarithm of hydrogen or hydronium ion concentration that are present in a solution.

The equation representing pH of the solution follows:

$pH=-\log[H^+]$