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mylen [45]
3 years ago
13

After doing the flame test, what can you infer about the different coloured flames produced by different elements?

Chemistry
1 answer:
Setler79 [48]3 years ago
3 0
You can infer that the different elements have different light spectrum frequencies, causing the different light colors.
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For the reaction:
Sophie [7]

Hey there!

For SN1 mechanism; the activation barrier is the C-I bond energy which is broken in the first step of the reaction.

The activation barrier is : 56 kcal/ mol = 5.6 kcal/ mole ( nearest 0.1)

6 0
3 years ago
Who was the first person to go to the moon​
mestny [16]

Answer:

The first person to go to the moon

Explanation:

Neil Armstrong was the first person !

heres more info on NASAs page!

https://www.nasa.gov/audience/forstudents/k-4/stories/first-person-on-moon.html

8 0
3 years ago
Read 2 more answers
………… is the Energy stored in chemical bonds.
Katyanochek1 [597]

Answer:Energy, potential energy, is stored in the covalent bonds holding atoms together in the form of molecules. This is often called chemical energy. ..

Explanation:This movement is a form of kinetic energy, and the more the molecules move the more kinetic energy they have. Molecules in solids don't move much, they just vibrate

3 0
2 years ago
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How do we know stars are element factories?
djverab [1.8K]
In a nutshell, stars are mainly made of hygrogen, element 1.

over time, elements got more dense as they collided and cooled, leading to other gases, metals...

then they explode, which lead to all kinds of further complex elements.

The stuff that makes up the universe a lot of it is from exploding star stuff, and the Earth was built up upon these remains and the atoms that make up organisms even could originally be from stars.

8 0
3 years ago
45. The following data was collected for 3 compounds:
Vika [28.1K]

Answer:

The three compounds are different compounds

Explanation:

The mass of Nitrogen that combines with 1 gram of Oxygen in  Compound A = 1.750 g

The mass of Nitrogen that combines with 1 gram of Oxygen in  Compound B  = 0.8750 g

The mass of Nitrogen that combines with 1 gram of Oxygen in  Compound C  = 0.4375 g

According to the law of multiple proportions, when atoms of two different elements react to form compounds, the masses of one of the elements that combines with a fixed mass of the other element are in small whole number ratios.

The ratio of the masses are;

Mass of Nitrogen in Compound B/(Mass of Nitrogen in Compound C =  0.8750/0.4375 = 2

Mass of Nitrogen in Compound A/(Mass of Nitrogen in Compound C =  1.750/0.4375= 4

Mass of Nitrogen in Compound A/(Mass of Nitrogen in Compound B =  1.750/0.8750= 2

Given that the masses of Nitrogen in the three compounds are in small whole number ratios, the three compounds, Compound A, Compound B, and Compound C are different compounds.

5 0
3 years ago
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