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Tema [17]
3 years ago
6

Which of the following electromagnetic waves carries the most energy?

Chemistry
2 answers:
Tatiana [17]3 years ago
8 0

x-rays is the correct answer. no cap

den301095 [7]3 years ago
7 0

I believe ultraviolet waves. Hope this helped!

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How many grams of Carbon are in sample of 400 grams of Co2?​
RoseWind [281]

Answer:

Mass of carbon = 109.1 g

Explanation:

Given data:

Mass of carbondioxide = 400 g

Mass of carbon = ?

Solution:

Molar mass of carbon = 12 g/mol

Molar mass of CO₂ = 44 g/mol

Mass of carbon in 400g of  CO₂:

Mass of carbon = 12 g/mol/44 g/mol × 400 g

Mass of carbon = 109.1 g

3 0
3 years ago
The total number of the elements above with 2 valence electron is ____.
OverLord2011 [107]

Answer:

four elements

Explanation:

He = 1s²

Be = 1s² 2s²

C = 1s² 2s² 2p²

Mg = 1s² 2s² 2p⁶ 3s²

Si = 1s² 2s² 2p⁶ 3s² 3p²

Ca = 1s² 2s² 2p⁶ 3s² 3p⁶ 4s²

Valence electrons are those electrons which are present in outer most electronic shell.

He, Be, Mg, Ca these four elements have 2 valence electrons.

While Si and C have four valance electrons.

4 0
2 years ago
A chemist adds 36.0 g of sodium chloride to 200 g of water at STP and all of the sodium chloride dissolves. What is the solute i
erica [24]

Answer:

The answer is the Sodium Chloride.

Explanation:

A solute is the minor component in a solution, dissolved in the solvent, and the sodium is being dissolved in water ( or the solvent).

3 0
2 years ago
Which is the correct Lewis structure of C2H4
Maslowich
Lewis structure for C2H4

3 0
3 years ago
Explain why a city that receives 10 hours more light each day has colder average temperatures. Explain
Anestetic [448]

Explanation:

This would be similar to how the poles work in the North and South. Due to their placement, they recieve much more sun light than the rest of the Earth since we rotate horizontally. However, their placement also makes them farther from the sun than the rest of Earth, therefore not receiving as much heat.

3 0
3 years ago
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