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scZoUnD [109]
3 years ago
6

What gives the color and shape characteristics to flames in a fire?

Chemistry
1 answer:
zalisa [80]3 years ago
8 0

Answer:

Different ions of different elements (usually metals) make a flame burn with a characteristic color when introduced into the reaction zone; the different colors are caused by the different quantized energy levels of the electrons in the different atoms.

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Pls help with science
MissTica
The answer is C because it is believed that those two were once connected
6 0
3 years ago
How many acetate ions are formed when three formula units of zinc acetate dissociate?
jeyben [28]
A formula unit is the same as the empirical formula of a compound or an ionic molecule. It is the lowest ratio of the atoms in the compound or ion. Zinc acetate ions dissociates into zinc ions and acetate ions. The dissociation reaction is expressed as follows:
Zn(O2CCH3)2 = Zn2+ + 2(O2CCH3)1-

We determine the amount of acetate ions produced as follows:

Moles Zn(O2CCH3)2 = (3 formula units Zn(O2CCH3)2) ( 1 mol / 6.022x10^23 formula units) = 4.98x10^-24 mol Zn(O2CCH3)2
moles (O2CCH3)1- = 4.98x10^-24 mol Zn(O2CCH3)2 ( 2 mol (O2CCH3)1- / 1 mol Zn(O2CCH3)2 ) = 9.96x10^-24 mol (O2CCH3)1-
# of acetate ions = 9.96x10^-24 mol (O2CCH3)1- ( 6.022x10^23 ions / 1 mol (O2CCH3)1-) = 6 acetate ions
3 0
3 years ago
Crude oil is ________. a. composed of less than ten different hydrocarbon molecules b. formed in a wide range of temperature and
Arisa [49]

Answer:

C

Explanation:

A - Crude oil is composed for hundreds of hydrocarbon, not less than ten.

B - Is formed in specific conditions of temperature and pressure

C - It's fractionated to form gasoline, lubricants, CH4, plastics and many other products made of hydrocarbon.

D - We have crude oil located more than 4000 yards below the surface in countries like Brazil

E - The crude oil is very thick and don't have an specific usage, so we need to refine it.

3 0
3 years ago
Who was on the grand committee
Rzqust [24]

Answer:

European Union was on grand committee

6 0
3 years ago
Where digestion take place in : ( carbohydrates )<br>( fats )<br>( proteins )​
garri49 [273]

Answer:

Digestion take place in Fats.

7 0
3 years ago
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