The light produced by fireflies is a complex

Chemistry

1 answer:

mr_godi [17]4 years ago

7 0

The answer is h the reaction produces a lot of thermal energy

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Hyposulfite, SO22–, is a polyatomic ion that has not yet been definitively confirmed to exist. However, the VSEPR model may stil

LUCKY_DIMON [66]

Answer:

The most reasonable estimate for the O–S–O bond angle in hyposulfite = 106°

Explanation:

Hyposulphite (so₂²⁻) is polyatomic ion .

According to VSEPR model

Total elrctron pairs $=\frac{1}{2} [V+X -C+A]$

V = Valence shell electrons of central element

X = No. of monovalent surrounding atoms

C = Cationic charge

A = Anionic charge

Total electron pairs $=\frac{1}{2}[6+0-0+2]= 4$

That is two bond pairs and two lone pairs

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3 years ago

Question 6 (1 point)

777dan777 [17]

This statement would be best characterized by the law of conservation of momentum—choice C.

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3 years ago

In your own words, explain the periodic law.

mote1985 [20]

States that the properties of elements are periodic or recurring and are correlated to their atomic number.

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4 years ago

PLEASE HELP! MAJOR GRADE!

chubhunter [2.5K]

Answer:

A, B, and C are the correct answers.

Explanation:

The reason why solid, liquid, and gas are the most common of the elements because usually in school they teach you more about those 3 elements more than plasma ( from where I am ). Also, all of these states behave differently. Liquid is a substance that flows freely but is of constant volume, having a consistency like that of water or oil. Solid is firm and stable in shape. And gas is an air like substance. I'm not sure how to explain this more, it sounded better in my head. Hope this helped though!

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3 years ago

The half-life of tritium is 12.3 years. If 48.0 mg of tritium is released from a nuclear power plant during the course of a mish

Thepotemich [5.8K]

Half life is defined as the time when the final concentration reduced to half of the initial value.

Thus, for first half life, the remaining percentage of the reactant is 50 percent that is $\frac{50}{100}=\frac{1}{2}$

Now, for second half life, the remaining percentage will be 50 percent of the remaining 50 percentage that is $\frac{50}{2}=25$ $\frac{25}{100}=\frac{1}{4}$ or $\frac{1}{2^{2}}$