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Maurinko [17]
2 years ago
14

I) Choose The Correct Answer 1. Which of the following statement correctly describes the law of conservation of mass? A/ It stat

es that the total mass of reactants is equals with the total mass of products in all chemical reaction B/ The total numbers of atoms at the left should be equal with the total numbers of atoms at the right side of arrow C/Atom is neither created nor destroyed in any chemical reaction D/ All E/ None​
Chemistry
1 answer:
spin [16.1K]2 years ago
6 0

Answer:

<em><u>D</u></em><em><u> </u></em>all

Explanation:

because law of conservation of mass describes A, B and C statement

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a simple voltaic cell is made by immersing one zinc plate and one copper plate inside water diluted sulfuric acid solution.

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What is the wavelength, in nm, of the light photon emitted by a hydrogen atom when an electron goes from n
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Hence, the wavelength of the photon associated is 1282 nm.

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WILL GIVE BRAINLIEST!
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A

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4 0
2 years ago
How many moles of KNO3 are in 500 mL of 2. 0 M KNO3? mol KNO3.
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The moles can be defined as the mass of the substance with respect to molar mass. The moles of potassium nitrate is 1 mol.

<h3>How to calculate moles of a substance?</h3>

The moles of a compound can be calculated from:

\rm Moles=\dfrac{Mass}{Molar\;mass}

The molarity can be defined as the moles of solute in a liter of solution.

The molarity can be expressed as:

\rm Molarity=\dfrac{Moles\;\times\;1000}{Volume\;(mL)}

The molarity of potassium nitrate solution is 2 M, and the volume is 500 mL.

The moles of potassium nitrate is given as:

\rm 2\;M=\dfrac{Moles\;\times\;1000}{500\;mL}\\ Moles=\dfrac{2\;\times\;500}{1000}\;mol\\ Moles=1\;mol

The moles of potassium nitrate in 2 M, 500 mL solution are 1 mol.

Learn more about moles, here:

brainly.com/question/15209553

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What is the sequence of the complementary strand for the DNA ,gcaa
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Answer:

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T goes to A

G goes to C

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3 years ago
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