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AlekseyPX
2 years ago
6

How do elements differ going from left to right across a period on the periodic table?

Chemistry
1 answer:
Nuetrik [128]2 years ago
6 0
Their atomic number increases
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Why does temperature change always move from regions of hot to regions of cold?
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Answer:

earth surface is uneven because land heats faster than water causes air to warm.,expand and rise over land while it cools and sinks over the cooler waters surface..

8 0
3 years ago
Which factors affect electronegativity?
nasty-shy [4]
I believe d is the correct answer
3 0
3 years ago
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I NEED HELP ASAP !
Lana71 [14]

Answer:

1.

643.21g  1 mol  6.022^23

262.87 g   1 mol

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2.

4.061x10^24          1mol                22.4 (L)  

6.022^23       1mol

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3.

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18.02g    1mol

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80.34L   1mol       164.1

22.4L       1mol

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44.01g   1mol

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6.022^23    1mol

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8 0
3 years ago
Why is the robotic surgical system a bit like a video game?
koban [17]
It is a bit like a video game because when you dumb it down, it's basically a small robotic thing that is controlled by a controller. In video games, you have an avatar being controlled inside a game using a gamepad, in surgery you have a little machine inside of a person's body being controlled using a computer.
8 0
4 years ago
How many moles of methane (CH4) is<br> 6.70 x 1022 atoms of methane?
suter [353]

Answer:

0.1113  mol

Explanation:

Data Given:

no. of atoms of CH₄= 6.70 x 10²² atoms

no. of moles of methane (CH₄) = ?

Solution:

we will find no. of moles of methane (CH₄)

Formula used

          no. of moles = no. of atoms / Avogadro's number

Where

Avogadro's number = 6.022 x 10²³

Put values in above equation

         no. of moles = 6.70 x 10²² atoms / 6.022 x 10²³ (atoms/mol)

         no. of moles = 0.1113  mol

So,

There are 0.1113 moles of methane.

8 0
3 years ago
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