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german
2 years ago
14

Based on the nebular Theory, which of these is a step in the formation of a new planetary system?

Chemistry
2 answers:
never [62]2 years ago
8 0
A. evaporation of water
AveGali [126]2 years ago
4 0
The correct answer would be A: evaporation of water
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What is the temperature of the flame in degrees Celsius?
Vilka [71]

Answer:

- Deep red fire is about 600-800° Celsius

- Answer: {1102.91}

Given: K= °C + 273.15

K = 1,376.06

Since you’re trying to find C (Celsius) you want to get C by itself in the problem. So you subtract 273.15 from that side. Anything you do to one side of the equal sign you have to do to the other side, so also subtract 273.15 from K (1,376.06).

1,376.06 - 273.15 = {1102.91°C}

5 0
2 years ago
How many valence electrons are in the Lewis structure of Methane (CH4)?
ladessa [460]

I'm pretty sure that is correct too

Because Carbon has 4 VE and you have 4 atoms of hydrogen, each hydrogen atom has 1 VE (4 atoms = 4 VE)

4 + 4= 8 so yeah

4 0
3 years ago
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In the following equation, ______ is being oxidized and ______ is being reduced.
Mashcka [7]

oxidation \: number \: of \: oxygen =  \\ before \: rxn =  - 2 \\ after \: rxn =  - 2

oxidation \: number \: of \: hydrogen = \\ before \: rxn =  + 1 \\ after \: rxn =  \\ 2x - 2 = 0 \\ x =  + 1

oxidation \: number \: of \: carbon =  \\ before \: rxn =  \\ x  - 6 =  - 2 \\ x = 4 \\ after \: rxn =  \\ x - 4 = 0 \\ x = 4

<h2>Option A</h2>

oxidation \: numbers \: remain \: constant \\ so \: none \:a re \: undergoing \: oxidation \: \\ nor \: reduction \:

6 0
1 year ago
Which of the following elements would have the greatest attraction for
stiv31 [10]

Answer:

Sr

Explanation:

because it's electronegativity is the highest.

4 0
2 years ago
Use the Periodic Table to determine the shape of the molecule represented by the following formulas.
neonofarm [45]

Answer:

the answer is tetahedal and the next one is trigonal pyramidal

Explanation:

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2 years ago
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