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Schach [20]
3 years ago
5

Metion two common types of flames and conditions under which each is produced​

Chemistry
1 answer:
wariber [46]3 years ago
7 0

Answer:

natural flame,oxidising flame

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How many grams are in 0.21mol sample of ethyl alcohol?
vampirchik [111]
Mass = moles x molar mass
Molar mass of eythl alcohol = 46

Mass= 0.21 x 46= 9.66g
7 0
4 years ago
(kco3s+ ∆→kcl s o2g) es exotérmica o endotermica?<br>justifica tu respuesta.​
posledela

Answer:

? can u explain. Not sure what ur asking

Explanation:

8 0
3 years ago
Please help me !!!!!!!!! <br> i'll give brainlist !
marshall27 [118]

Answer:

a) 3

b) 2

c) 1

d) 2

e) 3

Hope this helps

7 0
3 years ago
Read 2 more answers
In a combustion experiment, it was found that 12.096 g of hydrogen molecules combined with 96.000 g of oxygen molecules to form
Mkey [24]
The mass change, or the mass defect, can be calculated by the formula that is very known to be associated with Albert Einstein. 

E = Δmc²
where
E is the energy gained or released during the reaction
c is the speed of light equal to 3×10⁸ m/s
Δm is the mass change

(1.715×10³ kJ)(1,000 J/1 kJ) = Δm(3×10⁸ m/s)²
Δm = 1.91×10⁻¹¹ kg
5 0
3 years ago
Ammonium phosphate ((NH4)3PO4) is an important ingredient in many fertilizers. It can be made by reacting phosphoric acid (H3PO4
Alex Ar [27]

Taking into account the reaction stoichiometry, 8.8488 grams of (NH₄)₃PO₄ is produced by the reaction of 5.82g of phosphoric acid.

<h3>Reaction stoichiometry</h3>

In first place, the balanced reaction is:

H₃PO₄ + 3 NH₃  → (NH₄)₃PO₄

By reaction stoichiometry (that is, the relationship between the amount of reagents and products in a chemical reaction), the following amounts of moles of each compound participate in the reaction:

  • H₃PO₄: 1 mole
  • NH₃: 3 moles
  • (NH₄)₃PO₄: 1 mole

The molar mass of the compounds is:

  • H₃PO₄: 98 g/mole
  • NH₃: 17 g/mole
  • (NH₄)₃PO₄: 149 g/mole

Then, by reaction stoichiometry, the following mass quantities of each compound participate in the reaction:

  • H₃PO₄: 1 mole ×98 g/mole= 98 grams
  • NH₃: 3 moles ×17 g/mole= 51 grams
  • (NH₄)₃PO₄: 1 mole ×149 g/mole= 149 grams

<h3>Mass of ammonium phosphate formed</h3>

The following rule of three can be applied: if by reaction stoichiometry 98 grams of H₃PO₄ form 149 grams of (NH₄)₃PO₄, 5.82 grams of H₃PO₄ form how much mass of (NH₄)₃PO₄?

mass of (NH₄)₃PO₄=\frac{5.82 grams of H_{3} PO_{4}x149 grams of (NH_{4} )_{3}PO_{4}   }{98 grams of H_{3} PO_{4}}

<u><em>mass of (NH₄)₃PO₄= 8.8488 grams</em></u>

Finally, 8.8488 grams of (NH₄)₃PO₄ is produced by the reaction of 5.82g of phosphoric acid.

Learn more about the reaction stoichiometry:

brainly.com/question/24741074

brainly.com/question/24653699

#SPJ1

3 0
1 year ago
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