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Dvinal [7]
3 years ago
13

The law of conservation of mass says that *

Chemistry
1 answer:
BabaBlast [244]3 years ago
8 0
The answers would be the mass before a reaction is the same as the mass after a reaction which basically means mass is conserved
You might be interested in
What is the density (in g/L) of a gas with
viva [34]

Answer:

2.22 g/L

Explanation:

There's a relationship using the ideal gas law between molar mass and density: MM=\frac{dRT}{P}, where MM is the molar mass, d is the density, R is the gas constant, T is the temperature, and P is the pressure.

We know from the problem that MM = 32.49 g/mol, T = 458 Kelvin, and P = 2.569 atm. The gas constant, R, in terms of the units atm and Kelvin is 0.08206. Let's substitute these values into the formula:

MM=\frac{dRT}{P}

32.49g/mol=\frac{d*0.08206*458K}{2.569atm}

Solve for d:

d * 0.08206 * 458 K = 32.49 * 2.569

d = (32.49 * 2.569) / (0.08206 * 458 K) ≈ 2.22 g/L

The answer is thus 2.22 g/L.

<em>~ an aesthetics lover</em>

4 0
4 years ago
You have 0.21 moles of Al how many atoms do you have
ZanzabumX [31]

Number of atoms : 1.26 x 10²³

<h3>Further explanation  </h3>

The mole is the number of particles(molecules, atoms, ions) contained in a substance  

1 mol = 6.02.10²³ particles

Can be formulated

N=n x No

N = number of particles

n = mol

No = Avogadro's = 6.02.10²³

0.21 moles of Al, so n = 0.21

Number of atoms :

\tt N=0.21\times 6.02\times 10^{23}\\\\N=1.26\times 10^{23}

8 0
3 years ago
Please answer this as soon as possible Thank You.
sashaice [31]

Answer:

jchb3prhoucheoucheoucheouchoudehocuehcdouhd

Explanation:

5 0
3 years ago
which is a scientific claim? At least 75 percent of the class will pass the physical science test today because they studied mor
wlad13 [49]
Plants fertilized one per week with Super Plant Food Formula have been shown in testing to produce twice as much fruit as plants that are not. 

That answer is the most scientific because it states the word "testing" and in science they do a bunch of test to make a scientific claim. 
3 0
3 years ago
Read 2 more answers
What is pH?
Viktor [21]
I think the answer A or C
8 0
3 years ago
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