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likoan [24]
4 years ago
6

The most vigorous chemical reaction would likely come between: na and f ca and f ba and f fr and f

Chemistry
2 answers:
KonstantinChe [14]4 years ago
8 0
Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions.

The most vigorous chemical reaction would likely come between <span>Fr and F</span>
Elena-2011 [213]4 years ago
4 0

Answer: The correct answer is Francium and Fluorine.

Explanation:

The most vigorous chemical reaction will occur between the most reactive metal and most reactive non-metal.

Reactivity of metal is defined as the tendency of elements to loosing electrons easily. Reactivity of metals decreases as we move from left to right and increases as we move down in the group. Hence, the most reactive metal is Francium.

Reactivity of non-metals is defined as the tendency of the element to gain electrons easily. Reactivity of non-metals increases across a period and decreases as we move down in a group. Hence, the most reactive non-metal is Fluorine.

Therefore, the most vigorous chemical reaction will occur between Francium and Fluorine.

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3 years ago
What is the half-life for the first order decay of 14C according to the reaction, 146C — 147N +e- ?
m_a_m_a [10]

Answer:

5727 years or 5730 (rounded to match 3 sig figs) whichever one your teacher prefers

Explanation:

First Order decay has a half life formula of Half Life = Ln (2) / k = 0.693/K

Half-life = 0.693/k = 0.693/1.21 x10-4 =  5727 years or 5730 (rounded to match 3 sig figs)

This should be correct because if you google the half-life of 14 C it is ~ 5700 years

8 0
3 years ago
Is a freshly squeezed grapefruit a solution or a mechanical mixture?
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3 years ago
Drinking water may contain a low concentration of lead ion (Pb2 ) due to corrosion of old lead pipes. The EPA has determined tha
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Answer:

3.861x10⁻⁹ mol Pb⁺²

Explanation:

We can <u>define ppm as mg of Pb²⁺ per liter of water</u>.

We<u> calculate the mass of lead ion in 100 mL of water</u>:

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Now we <u>convert mass of lead to moles</u>, using its molar mass:

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3 years ago
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