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Molodets [167]
2 years ago
13

Vinegar (acetic acid) and baking soda (sodium bicarbonate) react in an endothermic reaction to produce sodium acetate, carbon di

oxide, and water. Which statement justifies classifying the reaction as endothermic?
A. The reaction produces water.

B. The bonds in both the reactants and products are covalent bonds.

C. The reaction needs a catalyst.

D. The total potential energy of the products is less than the total potential energy of the reactants.
Chemistry
1 answer:
AlekseyPX2 years ago
3 0

Answer: The total potential energy of the products is less than the total potential energy of the reactants

Explanation:

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melisa1 [442]
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5 0
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What is an emission spectrum?
SashulF [63]

Answer:

D

Explanation:

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8 0
2 years ago
Tin was among the first metals used by humans. Elemental tin is produced by heating tin(IV) oxide, the principal ore of tin, wit
insens350 [35]

<u>Answer:</u> The coefficient of carbon in the chemical reaction is 1.

<u>Explanation:</u>

A balanced chemical equation is defined as the equation in which total number of individual atoms on the reactant side is equal to the total number of individual atoms on product side.

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The chemical equation for the reaction of tin (IV) oxide and carbon follows:

SnO_2+C\rightarrow Sn+CO_2

By Stoichiometry of the reaction:

1 mole of tin (IV) oxide reacts with carbon to produce 1 mole of elemental tin and carbon dioxide.

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4 0
3 years ago
A scientist wants to make a solution of tribasic sodium phosphate, Na3PO4, for a laboratory experiment. How many grams of Na3PO4
balu736 [363]

Answer:

51.53 grams .

Explanation:

Na₃PO₄    ⇄  3Na⁺¹   +    PO₄⁻³ .

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= .9425 moles

3 mole of Na⁺  is formed by 1 mole of Na₃PO₄

.9425 mole of Na⁺  is formed by .9425/3  mole of Na₃PO₄

Na₃PO₄ needed =  .9425/3  moles = .3142 moles

Molecular weight of Na₃PO₄ = 164

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8 0
2 years ago
¿Qué es un enlace químico?
fredd [130]

Answer:

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Explanation:

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