1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
PSYCHO15rus [73]
3 years ago
15

PLeaseee ITS Timedddd + BrainlIESTT

Chemistry
1 answer:
zmey [24]3 years ago
8 0

Answer:

d. 12.3 grams of Al2O3

Explanation:

Based on the reaction:

4Al + 3O2 → 2Al2O3

<em>Where 4 moles of Al reacts in excess of oxygen to produce 2 moles of aluminium oxide.</em>

<em />

To solve this question we must find the moles of Aluminium. With these moles we can find the moles of aluminium oxide using the reaction:

<em>Moles Al -Molar mass: 26.9815g/mol-</em>

6.50g * (1mol / 26.9815g) = 0.241 moles Al

<em>Mass Al₂O₃ -Molar mass: 101.96g/mol-</em>

0.241 moles Al * (2 mol Al2O3 / 4 mol Al) = 0.120 moles Al2O3

0.120 moles Al2O3 * (101.96g / mol) =

12.3g of Al2O3 are produced.

Right answer is:

<h3>d. 12.3 grams of Al2O3 </h3>

You might be interested in
In nature, Chlorine-35 isotopes (35 amu) make up 75
dalvyx [7]
35 x 75% + 37 x 25% = 35.5
3 0
3 years ago
Which are the intermolecular forces that can act between non-polar molecules?
Licemer1 [7]
The answer is london dispersion forces. It is one of two intermolecular forces that is present in all molecules! 


8 0
2 years ago
If 5750 Joules of energy are added to 455 grams of granite at 24.0 C, what is the final temperature of the granite The specific
Darina [25.2K]
Joules/ (Grams * Kelvin)
Kelvin = Celsius + 273.15
5 0
3 years ago
For which of the following processes would you expect there to be an increase in entropy? Ag+(aq) + Cl-(aq) AgCl(s) H2O(g) H2O(l
Lyrx [107]
CaBr₂(s) → Ca⁺²(aq) + 2Br⁻ (aq)     ΔS>0
6 0
2 years ago
Read 2 more answers
A solution of which of the following coordination compounds will form a precipitate when treated with aqueous AgNO3?
lidiya [134]

Answer:

[Cr(NH3)6.]C13

Explanation:

Alfred Werner's coordination theory (1893) recognized two kinds of valency;

Primary valency which are nondirectional and secondary valency which are directional.

Hence, the number of counter ions precipitated from a complex depends on the primary valency of the central metal ion in the complex.

We must note that it is only these counter ions that occur outside the coordination sphere that can be precipitated by AgNO3.

If we consider the options carefully, only [Cr(NH3)6.]C13 possess counter ions outside the coordination sphere which can be precipitated when treated with aqueous AgNO3.

3 0
2 years ago
Other questions:
  • If one atom has 12 protons, 6 neutrons, and 6 electrons. And another one has 12 protons, 7 neutrons, and 8 electrons. Are both a
    8·2 answers
  • 3 materiales corrosivos
    13·1 answer
  • The plant food contains nh4)3po4 what tests would you run to verify the presence of the nh4 ion and the po4 ion
    13·2 answers
  • The reaction 2NO2(g)+F2(g)--&gt;2NO2F(g) has an overall second order rate law, rate=k[NO2][F2]. Suggest a mechanism consistent w
    15·1 answer
  • How many moles of ethane gas, C2H6(g), will occupy 15.0 L at 30 degrees Celsius and 5.0 atm?
    10·1 answer
  • what can be inferred from a food product advertisement that claims 30% less fat than our leading competitors? ​
    12·2 answers
  • Solid potassium chloride is obtained by the reaction of solid potassium and chlorine gas.
    11·1 answer
  • PLZ ANSWER FOR BRAINLIEST
    8·2 answers
  • The _______ atom in a water molecule points toward the sodium ion because its partial _______ charge is attracted to the sodium
    7·1 answer
  • A 2. 26 l balloon of helium is at 30°c and 1. 61 atm, what is the pressure if the volume is increased to 4. 12 l?.
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!