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KatRina [158]
3 years ago
6

Which of the following reaction is NOT a step in the formation of sodium chloride

Chemistry
1 answer:
Yakvenalex [24]3 years ago
8 0
Aspirin(3) was synthesized by esterification reaction of salicylic acid(1) with acetic anhydride(2) catalyzed by aluminum dihydrogen tripolyphosphate/loaded sulfur diatomite. The effects of materials ratio[r = n(2) ∶ n(1) ],reaction time,temperature and catalyst amount on the yield of 3were investigated by the single-factor experiments. The results showed that the four main factors influencing the yield of 3 are in the following order: r reaction time reaction temperature catalyst amount. Under the optimum reaction conditions[1 was 50 mmol,the catalyst amount was 5%,r was3. 14,at 81 ℃ for 40 min],the yield was 88. 6%. The yield still reach 83. 3% after reuse for five times of the catalyst
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About how many harvests of bamboo can be collected during the time it takes to fully grow one pine tree?
Tomtit [17]

Answer:

bamboo can grow 910 mm (36 in) within a 24-hour period,at a rate of almost 40 mm (1 1⁄2 in) an hour (a growth around 1 mm every 90 seconds, or 1 inch {2.54 centimeters} every 40 minutes).

Explanation:

6 0
3 years ago
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yuradex [85]
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What is the correct sequence of eras of the geologic time scale in order from oldest to youngest ?
finlep [7]

Answer:

it would be the 3rd

Explanation:

6 0
3 years ago
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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
In chemistry what is nickle (II) nitrate solution mixed with a sodium hydroxide solution
AlladinOne [14]

Answer:

I hope this will help you and Please mark me as Brilliant

Explanation:

Approximately 2 mL of Solution A (on the left) is added to a sample of Solution B (on the right) with a dropping pipet. If a precipitate forms, the resulting precipitate is suspended in the mixture. The mixture is then stirred with a glass stirring rod and the precipitate is allowed to settle for about a minute.

Solution A: 0.5 M sodium hydroxide, colorless

Solution B: 0.2 M nickel(II) nitrate, green

Precipitate: light green

Ni(NO3)2(aq) + 2 NaOH(aq) —> Ni(OH)2(s) + 2 NaNO3(aq)

Credits: 

Design

Kenneth R. Magnell Central Michigan University, Mt. Pleasant, MI 48859

John W. Moore University of Wisconsin - Madison, Madison, WI 53706

Video

Jerrold J. Jacobsen University of Wisconsin - Madison, Madison, WI 53706

Text

Kenneth R. Magnell Central Michigan University, Mt. Pleasant, MI 48859

6 0
3 years ago
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