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siniylev [52]
3 years ago
15

6. How is the law of conservation of mass shown by a balanced chemical equation?

Chemistry
1 answer:
tigry1 [53]3 years ago
6 0

Answer:

Any balanced equation shows the law of <em>conservation</em><em> </em><em>of</em><em> </em>mass as the number of reactant used would be equal to the number of product formed

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Why should reactions not be performed in graduated cylinder?​
Stells [14]

Answer:

A Graduated Cylinder has a limited round and hollow shape with each stamped line demonstrating the volume of fluid being estimated. While they are commonly more exact and exact than lab flagons and recepticles, they ought not be utilized to perform volumetric examination.

3 0
3 years ago
In the modern periodic table, elements are arranged according to increasing ____. (1 point). . a. atomic number. b. atomic mass.
ki77a [65]
I think the correct answer from the choices listed above is option A. In the modern periodic table, elements are arranged according to increasing <span>atomic number. The atomic number represents the number of protons present for a specific atom.</span>
5 0
3 years ago
Step 2: measure the area of the top of the syringe
Elena L [17]

I am unsure if this is correct, but this might be the whole section:

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  • Divide by two to find the radius. Maintain significant figures. <em>Answer: </em><em>1.80 </em><em>cm</em>
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6 0
2 years ago
A hypothetical covalent molecule, X–Y, has a dipole moment of 1.93 1.93 D and a bond length of 109 pm. 109 pm. Calculate the par
Gnesinka [82]

Answer:

q= 110.5 ke

Explanation:

Dipole moment is the product of the separation of the ends of a dipole and the magnitude of the charges.

μ = q * d

μ= Dipole moment (1.93 D)

q= partial charge on each pole

d= separation between the poles(109 pm).

e= electronic charge ( 1.60217662 × 10⁻¹⁹ coulombs)

So,

q= \frac{1.93}{109 * 10^{-12} } coulombs

q = \frac{1.93}{109 * 10^{-12} *  1.60217662 * 10^{-19} } e

q = 1.105 * 10⁵ e

q= 110.5 ke

4 0
3 years ago
Which substance would have the greatest standard molar entropy?<br>NO2(g)<br>N; (g)<br>N20<br>NO20​
Rama09 [41]

Answer:

Option A

Explanation:

Standard molar entropy determines the randomness of a mole of substance. Thus, the larger and complex a molecule is, the larger will be its molar entropy.  

The molar entropy of gases is higher than liquids which is turn is higher than solid.  

Here , NO2 is a gas with higher complex structure (trigonal planar) than N2 (linerar), N2O (linear) and N2O2 (linear)

Hence, NO2(g) will have greatest standard molar entropy  

Option A is correct

5 0
2 years ago
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