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galben [10]
3 years ago
13

HELP!!!!!!! 40 points! I WILL GIVE BRAINLIEST IF RIGHT

Chemistry
2 answers:
wlad13 [49]3 years ago
5 0
C. All electromagnetic waves travel at the same speed
Korolek [52]3 years ago
4 0
<span>b) High-frequency waves travel somewhat faster than low-frequency waves</span>
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How many grams are in 2 moles of Iodine?
Nady [450]

Answer: 253.8

Explanation:

The molar mass of iodine is 126.904. Multiply that by two and you get approximately 253.8 grams in two moles.

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2 years ago
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Describes how Anders Celsius devised the temperature scale that bears his name
shusha [124]
He used a tube of mercury and marked the height of the mercury when placed in an ice bath as 0 degrees celsius, when he placed the tube in a boiling, he marked the height of mercury and called that 100 degrees celsius, he marked it linearly between 0-100 degrees celsius
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How many moles are in 100 grams of gold?
raketka [301]

Answer:

0.01 mole

Explanation:

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Write a complete set of quantum numbers for the fifth electron added to a hydrogen ion (i.e., the fifth electron in any electron
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N=
l=
m(l)=
m(s)=

start with H^+ (no electrons) , then adding 5 electrons will be  1s2 2s2 2p1
so for the 5th electron 
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5 0
3 years ago
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