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Mariulka [41]
3 years ago
15

Consider the unbalanced equation for the oxidation of aluminum. _Al + _O2 ------> _Al2O3 Which sequence of coefficients shoul

d be placed in the blanks to balance this equation? * 2 points 2,3,1 1,3,2 4,3,2 3,2,3
Chemistry
1 answer:
Nimfa-mama [501]3 years ago
6 0

Answer:

4Al + 3O2-> 2Al2O3 :))))

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How many mL of a 6 M NaOH stock solution is needed in order to prepare 500 mL of a 0.2 M NaOH solution?
WITCHER [35]

Answer:

The right answer is "16.67 mL".

Explanation:

Given:

Molarity of NaOH,

M_1=6 \ M

M_2=0.2 \ M

Volume of NaOH,

V_1=V \ mL

V_2=500 \ mL

As we know, the equation,

⇒ M_1V_1=M_2V_2

On putting the values, we get

⇒ 6\times V=0.2\times 500

⇒ 6\times V=100

⇒        V=\frac{100}{6}

⇒            =16.67 \ mL      

3 0
3 years ago
GIVING BRAINLIEST, FIVE STARS AND THANKS!!!!!!!!!!!!!!!!!!!!!!!!!!!
FinnZ [79.3K]

Answer:

<u>The advantages of nuclear energy:</u>

*produces low-cost energy

*it releases zero carbon emissions,

*there is a promising future for nuclear technology

*it has a high energy density

*it is reliable

hope this helps, have a great day! :D

6 0
3 years ago
Read 2 more answers
HELP ASAP CHEM!!!! Please
iogann1982 [59]

Answer:

The solubility of gases decreases with pressure as that of solids and liquids is not affected.

6 0
3 years ago
H E L P Nitrogen is collected in gas jar by the downward displacement of water why explain it <br>​
Feliz [49]

Answer:

This is because, nitrogen is less dense than water, with a density of 1000 g/L, it is sparingly soluble in water and it is easy to differentiate between it and water.

Explanation:

<h2>hope it is helpful for you</h2><h2>Thank you </h2>
8 0
3 years ago
a gas has a volume of 4.54 L at 1.65 atm and 75. I decrease celsius. At what pressure would the volume of the gas be increased t
Vikentia [17]

Answer:

The answer to your question is P2 = 1.52 atm

Explanation:

Data

Volume 1 = V1 = 4.54 l

Pressure 1 = P1 = 1.65 atm

Temperature 1 = T1 = 75°C

Volume 2= V2 = 5.33 l

Pressure 2 = P2 = ?

Temperature 2 = 103°C

Process

1.- Convert temperature to °K

Temperature 1 = 75 + 273 = 348°K

Temperature 2 = 103 + 273 = 376°K

2.- Use the combine gas law to find the final pressure

               P1V1/T1 = P2V2/T2

-Solve for P2

               P2 = P1V1T2 / T1V2

-Substitution

               P2 = (1.65 x 4.54 x 376) / (348 x 5.33)

-Simplification

               P2 = 2816.62 / 1854.84

-Result

              P2 = 1.52 atm

5 0
3 years ago
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