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lukranit [14]
4 years ago
15

Balance these 2 equations AND identify the products and the reactants:

Chemistry
1 answer:
iogann1982 [59]4 years ago
6 0

Answer:

Explanation:

1) NaCl → Na + Cl₂

2) Na + HCl  → NaCl + H₂

Chemical equation:

NaCl → Na + Cl₂

Balanced chemical equation:

2NaCl → 2Na + Cl₂

There are two moles of sodium and two mole of chlorine on both side of equation so given chemical equation is correctly balanced and follow the law of conservation of mass.

2)

Chemical equation:

Na + HCl  → NaCl + H₂

Balanced chemical equation:

2Na + 2HCl  → 2NaCl + H₂

There are two moles of sodium and two mole of chlorine and hydrogen on both side of equation so given chemical equation is correctly balanced and follow the law of conservation of mass.

Law of conservation mass

According to the law of conservation mass, mass can neither be created nor destroyed in a chemical equation.

Explanation:

This law was given by french chemist  Antoine Lavoisier in 1789. According to this law mass of reactant and mass of product must be equal, because masses are not created or destroyed in a chemical reaction.

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<h2>9. Given : P + O2 = P2O5</h2>

Balanced Chemical Equation: <u>4</u>P + <u>5</u>O2 = <u>2</u>P2O5

<u>Reactant Product</u>

P = (1) 4 | P = (2) 4

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H = 2 | H = 2

Cl = 1 | Cl = 1

Na = 1 | Na = 1

O = 1 | O = 1

<h3>Chemical Equation is already in balance.</h3>

Reaction Information<em>:</em><em> </em><em>Hydrogen Chloride </em>+ <em>Sodium Hydroxide</em> = <em>Sodium Chloride </em>+ <em>Water</em>

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<h3>For more info:</h3>

<u>How to balance chemical equation?</u>

brainly.com/question/15939935

5 0
4 years ago
a graduated cylinder has 35.0 mL of water in it before and object is dropped inside. The new volume is 38.5 mL. What is the volu
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Displaced volume:

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1 mL = 1 cm</span>³<span>

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hope this helps!
7 0
3 years ago
A dry cleaning solvent (molar mass = 146.99 g/mol) is a compound containing C, H &amp; Cl is suspected to be a cancer causing ag
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Answer:

Okay so set up an equation for what's happening

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Do the same thing with H2O. Convert to moles by using the molar mass of H2O which is 18 g/mol. Now look at the ratio between Hydrogen and Oxygen. It's 2H:1O You just want H.. so do the number of moles of H2O and multiply it by 2 since there's 2 hydrogen atoms. Now you have the moles of hydrogen & put this number aside for later

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This is used in quantum chemical models to accurately calculate the amount

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The Self-Consistent Field (SCF) method for obtaining the orbitals of a

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The converging of the result typically signified the end of the solving of the

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Answer: m mm

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