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elena-s [515]
2 years ago
14

Balance the equation, if necessary, for the reaction between zinc and acetic acid. Zn + HC2H3O2 → Zn(C2H3O2)2 + H2

Biology
1 answer:
Pie2 years ago
4 0
Zn +2 HC2H3O2 - Zn(C2H3O2)2 + H2
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Humans have the most urgent need for a continuous supply of ________. Group of answer choices d. water a. food b. nitrogen c. ox
inna [77]

Answer:

Option "C" Oxygen is the correct answer to the following question:

Explanation:

We know that, Just as a human absorbs oxygen into the body through inhalation, the oxygen enters into the whole body also in the blood and is used in the body by cells, so we can say that the human body needs a constant supply of oxygen. therefore, the appropriate option is true

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Which three of the following options are taken in (absorbed, taken in, and taken up)
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A, C, E

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Briefly describe the initial experiment in which dr. folkman accidentally observed an important connection between tumor growth
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Http://www.pbs.org/wgbh/nova/cancer/folkman.html

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Why there is uncertainty in science.
andrew11 [14]

Answer: absolute certainty is often difficult to achieve. Scientific uncertainty generally means that there is a range of possible values within which the true value of the measurement lies.

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3 years ago
He chart shows rate of decay.
mina [271]

The value which is being measured in the columns labeled "Fraction remaining" and "Percentage remaining" is: D. amount of material that has not decayed.

<h3>What is a radioactive decay?</h3>

A radioactive decay can be defined as a radioactive process in which an unstable atomic nucleus undergoes a spontaneous transformation into one or more different atomic nuclei and simultaneously emits radiation, accompanied with a loss of energy.

<h3>The types of radioactive decay.</h3>

In Science, there are three main types of radioactive decay and these include the following:

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Based on the information provided in the table (see attachment), we can reasonably infer and logically deduce that the value which is being measured in the columns labeled "Fraction remaining" and "Percentage remaining" is the amount of material that has not decayed.

Read more on radioactive decay here: brainly.com/question/23303931

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