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3 years ago

What does it mean for a substance to have high reactivity?

2 answers:

8 0

Reactivity is the tendency of a substance to undergo chemical reaction, either by itself or with other materials, and to release energy.

ki77a [65]3 years ago

6 0

Answer: Option (a) is the correct answer.

Explanation:

When we say that a substance has high reactivity then it means the substance is able to react readily with another substance.

For example, atomic number of potassium is 19 and its electronic distribution is 2, 8, 8, 1.

Since, it has only one valence electron and to attain stability it just needs 8 electrons in its valence shell. So, it will readily lose its 1 valence electron and thus become very much reactive in nature.

Thus, we can conclude that for a substance to have high reactivity it means that it reacts easily with other substances.

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If a charge travels through a magnetic field, it experiences a magnetic force and its velocity is perpendicular to the direction

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Answer:people die and die

Explanation: cuz yes

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2 years ago

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An inexpensive and accurate method of measuring the quantity of electricity flowing through a circuit is to pass the current thr

Paha777 [63]

Total of 127.013 C of charge is passed

Given

weight of Ag solution before current has passed = 1.7854 g

weight of Ag solution after current has passed = 1.8016 g

Molecular mass of Ag = 107.86 g

Faraday's Constant = 96485

First of all we have to apply Faraday's First Law of Electrolysis i.e

m = ZQ

where

Z is propotionality constant (g/C)

Q is charge (C)

Hence,

Z = Atomic mass of substance/ Faraday's Constant

= $\frac{107.86 g}{96485 C}$

= 0.0011178 g/C

Now ,

change in mass before and after the passing of current (Δm)

Δm = 1.8016g-1.7854g

= 0.0162g

Now amount of coulombs passed = $\frac{0.142g}{0.0011178 g/C }$

amount of coulombs passed = 127.03524 C

Thus from the above conclusion we can say that amount of coulombs have passed is 127.03524 C

Learn more about Electrolysis here: brainly.com/question/16929894

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2 years ago

Sodium tends lose a single electron in natural settings. Based on what you know, what are two other elements that tend to do the

Oksi-84 [34.3K]

Answer:

Lithium and Sodium

Explanation:

Losing and electron in natural setting is characterizes of elements in group one. These are elements known as the alkaline earth metals. They are the most electropositive elements on the periodic table.

These elements ionize by losing an electron yin their outermost shell to attain the configuration of the nearest noble gas. These elements are usually found in combined and rarely seen in uncombined state principally due to their very reactive nature.

Sodium naturally would ionize by losing one electron. Other elements capable of this even at a better rate because they are more electropositive are potassium and lithium. Both are also group one alkaline metals

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notka56 [123]

Answer:

Explanation:

1.false

2.true

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3 years ago