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Tasya [4]
3 years ago
12

What is the first element in the periodic table?

Chemistry
2 answers:
horsena [70]3 years ago
6 0

Answer:

the first element on the table is Hydrogen

Over [174]3 years ago
5 0
Hydrogen is the first element in the periodic table level 1. Can be found on the top left
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Population from the phylogenetic tree?
bogdanovich [222]
Mark Brainliest please

Answer :

In my opinion , answer is A
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2 years ago
Proton-alpha: "One time I lived in an environment where next door lived identical twins, Proton-beta-1 and Proton-beta-2. Boy, d
Mashcka [7]

Answer:

Explanation:

C) What is the multiplicity of Proton-alpha's signal in this scenario when there are 2 identical protons "next door"?

Based on n+1 rule. Here n=2 (identical beta protons).

2+1=3

So the multiplicity of alpha proton is triplet, .

D) For molecules containing only single bonds (we'll discuss the influence of double bonds in a future lecture), what is the adjective that describes the position of protons that split a "next door neighbor's" signal?

    The meaning of the adjective is this: the multiplicity of beta protons is singlet only (no spliting) in absence of alpha proton . But beta protons splits as doublet (n=1) in the presence of alpha proton,

E) How many bonds connect these "splitting next door neighbors"?

There are 3 bonds in between alpha and beta protons in a molecule.

F) What is the multiplicity of the Proton-betas' signal?

Following the  n+1 rule, here n=1 (1 alpha proton) so 1+1=2. Hence it is  a doublet.

7 0
3 years ago
Do light waves interact with all mediums the same?
jeka94

Answer:

Light can be reflected, transmitted, or absorbed. You have read that EM waves can interact with a material medium in the same ways that mechanical waves do.

Explanation:

7 0
3 years ago
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I In a smaller room, such as a bathroom, the reflected sound can reverberate (echo in many directions) off the smooth tile. Why
AVprozaik [17]

Answer:

See explanation

Explanation:

It is common knowledge that quite a number of people enjoy singing in the shower. There are reasons for this!

In the shower, there are many surfaces that reflect the sound of your voice as you sing. That makes your voice to sound more powerful and have more  volume.

The reverberation of the sound makes the sound of your voice stronger and more intense altogether enriching the music produced as you sing.

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3 years ago
Notice that " s o 4 " appears in two different places in this chemical equation. s o 2− 4 is a polyatomic ion called "sulfate."
Amanda [17]
A "3" should but put in front of
<span>"cas o 4 "</span>
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3 years ago
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