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hodyreva [135]
3 years ago
5

Which is evidence that the reaction below is a redox reaction?

Chemistry
2 answers:
kvv77 [185]3 years ago
7 0

Answer:

The correct answer was A. The sodium atom is a pure element as a reactant and becomes part of a compound.

Explanation:

I took the test

Ksenya-84 [330]3 years ago
6 0

Answer:The correct answer is:

Two different elements take part in the reaction.

Explanation:

A redox reaction is generally defined as chemical reaction in which oxidation and reduction takes place simultaneously.It is a reaction between two species among which gain and loss of electrons takes place.

So, in the given reaction, sodium metal looses an electron to chlorine atom to form sodium chloride molecule.

Na\rightarrow Na^++e^- Oxidation

Cl+e^-\rightarrow Cl^- Reduction

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which has a higher entropy for the reaction: 2nh3(g)→n2(g) 3h2(g) which has a higher entropy for the reaction: reactants product
krok68 [10]

The one that has a higher entropy for the reaction is products.

<h3>What is entropy?</h3>

Entropy is a measureable physical characteristic and a scientific notion that is frequently connected to a condition of disorder, unpredictability, or uncertainty. It is the measurement of the amount of thermal energy per unit of temperature in a system that cannot be used for productive work. It is a measure of a system's molecular disorder or unpredictability since work is produced by organized molecular motion.

It should bm be noted that the entropy of gas is more than entropy of aqueous which is more than the entropy of liquid and the entropy of solid.

On the product side there are more gas than the reactant side. Therefore, product has more entropy.

Learn more about entropy on:

brainly.com/question/6364271

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3 0
1 year ago
Allen is carrying out reactions in a lab. One of the products in all reactions is found to be either a precipitate, a gas, or wa
vampirchik [111]
Here are some examples for those type of reactions.
<span>
Combustion reaction: CH4(g) + 2 O2(g) --> CO2(g) + 2 H2O(l)
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Decomposition reaction: CaCO3(s) ---> CaO(s) + CO2(g)

</span><span>Double replacement: AgNO3(aq) + NaCl(aq) ---> AgCl(s) + NaNO3(aq)


</span>One common thing in all is that they are reactions. They have reactants to form new substances called product.
4 0
2 years ago
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Billy drives a water balloon from the roof of his house since the balloon began with an original Velocity of zero how far above
Artyom0805 [142]
3.7 I thank is the answer
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2 years ago
A 35.40 gram hydrate of sodium carbonate, Na2CO3•nH2O, is heated to a constant mass. Its final weight is 30.2 g. What is formula
Sever21 [200]

Answer:

Na₂CO₃•H₂O

Explanation:

After it is heated, the remaining mass is the mass of sodium carbonate.

30.2 g Na₂CO₃

Mass is conserved, so the difference is the mass of the water:

35.4 g − 30.2 g = 5.2 g H₂O

Convert masses to moles:

30.2 g Na₂CO₃ × (1 mol Na₂CO₃ / 106 g Na₂CO₃) = 0.285 mol Na₂CO₃

5.2 g H₂O × (1 mol H₂O / 18.0 g H₂O) = 0.289 mol H₂O

Normalize by dividing by the smallest:

0.285 / 0.285 = 1.00 mol Na₂CO₃

0.289 / 0.285 = 1.01 mol H₂O

The ratio is approximately 1:1.  So the formula of the hydrate is Na₂CO₃•H₂O.

3 0
3 years ago
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You are making lemonade and the calls for 6 cups Lemon juice (L), 3 Cups of sugar (S) and 5 cups of water (W) to make 12 Cups of
vova2212 [387]

Answer:

18 Cups

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Explanation:

4 0
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