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olga_2 [115]
3 years ago
7

List two examples of objects at home that use chemical energy and describe what the chemical energy is being transformed into.

Chemistry
1 answer:
mr_godi [17]3 years ago
4 0

Answer: Batteries and Food

Explanation:

On the batteries that we use for example for a watch in the kitchen, occurs a chemistry reaction, called redox between Zn  and MnO2. The Zn is oxidized (in the anode)  and the MnO2 is reduced (in the cathode). In the oxidation, the athom loses electrons and in the reduction the opposites.

Regarding the chemical reactions that occur in the food that we consume, the hydrolisis that occurs in the stomach. The hydrochloric acid that is secreted in the stomach allows the activation of an enzyme, pepsinogen, which hydrolyzes the proteins present in the food consumed. That is, it hydrolyzes the peptide bonds of the proteins, which is between an amino and carboxyl bond of each amino acid that makes them up.

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What is the pH of 1.0 M KOH solution?
guapka [62]

Answer:

pH = 14

Explanation:

pOH = -log[OH-] = -log1,0 = 0

pH + pOH = 14

pH = 14 - pOH = 14 - 0 = 14

7 0
3 years ago
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Go To ScHoOl tO LeArN

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4 years ago
La predicción de las propiedades de un elemento en función de la posición que ocupa en el sistema periódico es una
Ad libitum [116K]

Answer:

Los elementos de la tabla periódica se distribuyen sobre la base de similitudes.

Explicación:

Los diferentes tipos de elementos se distribuyen en 8 grupos de tabla periódica en función de sus propiedades. Los elementos que tienen propiedades similares se colocan en el mismo grupo. Por ejemplo, el primer grupo de la tabla periódica son los metales alcalinos. Todos los metales alcalinos tienen algunas propiedades similares, es decir, un electrón en su capa más externa, alta reactividad y forma metálica, mientras que, por otro lado, los ocho elementos del grupo son gases nobles que tienen una capa más externa completa y no tienen reactividad.

3 0
3 years ago
1-Butanol, 1-butene, and di-n-butyl ether are all removed from the product by washing with concentrated sulfuric acid. Explain w
Alecsey [184]

Answer:

1-bromobutane, unlike others, will not be removed because it is an <em>alkane</em> and inert to concentrated sulfuric acid.

Explanation:

<em>Alkanes</em> are saturated organic compounds, primarily made up of hydrogen and carbon atoms. Saturation implies that they posses no double or triple bonds, therefore making them stable and unresponsive to addition reactions and also, concentrated sulfuric acid.

1-Butanol is a primary alcohol. Primary alcohols will react with acids to produce alkyl halides. 1-butene, as an alkene, will react with concentrated sulfuric acid to produce alkyl hyrgensulfate, while di-n-butyl will produce an ether when it reacts with concentrated sulfuric acid.

Therefore, these organic compounds will be washed and converted to other compounds by concentrated sulfuric acid except 1-bromobutane.

3 0
4 years ago
Х
Luba_88 [7]

Answer:

yes u are correct as it define that

7 0
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