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insens350 [35]
3 years ago
13

Elements in which two groups are considered highly reactive?

Chemistry
1 answer:
Savatey [412]3 years ago
6 0

Answer:

option d is correct

Explanation:

element of group 1A and 7A(halogens) are highly reactive

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The bond between iodine and fluorine in l-F would be a:
koban [17]

Answer:

D.) polar covalent bond

4 0
3 years ago
How is a sodium ion symbol written?<br> Na+<br> So+<br> ООО<br> SO-<br> Na-
Nataliya [291]

Answer:

Na^+

Explanation:

The symbol for sodium is Na.  The term "sodium ion" assumes that the reader knows that sodium's single 3s electron is susceptible to theft by any nearby element that has a high electron affinity.  Sodium's ionization energy is low, allowing the 3s electron to move elsewhere and leave behinf a positively charged Na^+ atom.

4 0
3 years ago
Write a balanced half-reaction for the reduction of gaseous nitrogen N2 to aqueous hydrazine N2H4 in acidic aqueous solution. Be
Kaylis [27]

Answer:

Explanation:

N₂ (g ) + 4H⁺( aq ) + 4e⁻ = N₂H₄ ( aq )

H⁺ ion comes from acidic medium . 4 positive charge on proton is balanced by 4 electron to make left hand side neutral because right hand side is neutral .

6 0
3 years ago
A hot ballon with mass of 400 kilograms moves across the aky with 3,200 joules of kinetic energy. The velocity of the ballon is
zmey [24]

Answer:

4 m/s

Explanation:

formula is v = (KE/.5m)^1/2

there is a calculator

https://www.calculatorsoup.com/calculators/physics/kinetic.php

8 0
3 years ago
If a particular utility burned 6.17 million tons of coal that was 2.00% sulfur by weight, how many tons of sulfur dioxide was em
Lera25 [3.4K]

246800 tons of sulfur dioxide was emitted by the utility company who burned 6.17 million tons of coal.

6.17 million tons of coal contain 2.00% sulfur, hence the weight of sulfur is:

Weight of sulfur = 2% of 6.17 million tons = 0.02 * 6170000 = 123400 tons

123400 tons of sulfur is found in 6.17 million tons of coal

The weight of sulfur dioxide is twice that of sulfur, hence:

Amount of sulfur dioxide emitted = 2 * 123400 tons  = 246800 tons

246800 tons of sulfur dioxide was emitted.

Find out more at: brainly.com/question/22255610

5 0
2 years ago
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