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viva [34]
2 years ago
6

Why is burning not a pahse change

Chemistry
1 answer:
sergij07 [2.7K]2 years ago
5 0

Answer:

This is because it is a physical change not a chemical change.

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Molar mass (NH4)2SO4
Hoochie [10]

Answer:

<u>132.15</u>

Explanation:

Molar mass N = 14.00

Molar mass H = 1.01

Molar mass H4 = 1.01 x 4 = 4.04

Molar mass NH4 = 14.00 + 4.04 = 18.04

Molar mass (NH4)2 = 18.04 x 2 = 36.08

Molar mass S = 32.07

Molar mass O = 16.00

Molar mass O4 = 16.00 x 4 = 64.00

Molar mass SO4 = 32.07 + 64.00 = 96.07

Molar mass (NH4)2SO4 = 36.08 + 96.07 = <u>132.14</u>

6 0
3 years ago
Lead(2) sulfate yields to lead(2)sulfite and oxygen
PolarNik [594]
A standardized test of what you want to do with your friends and you get to know what you think you want to be tre
4 0
3 years ago
Researchers are investigating processed that happen during digestion which answer choice describes only a physical change during
dolphi86 [110]

Answer:Chewing in the mouth breaks food into smaller pieces

Explanation: all you are doing is breaking down the food in your mouth

6 0
3 years ago
Refer to the Chemical Compounds table above. How many total elements are in<br> Ethanol?
Korolek [52]

Answer:

3 element i.e carbon (C), hydrogen (H) and oxygen.

Explanation:

The following data were obtained from the question:

Subtance >>>>>>>> Chemical Formula

Glucose >>>>>>>>> C₆H₁₂O₆

Methane >>>>>>>> CH₄

Ethanol >>>>>>>>> C₂H₅OH

Hydrogen peroxide >> H₂O₂

From the above table, we can see that ethanol (C₂H₅OH) contains carbon (C), hydrogen (H) and oxygen

Therefore, the total number of elements present in ethanol, C₂H₅OH is 3.

8 0
3 years ago
How many particles are in the nucleus of an atom of fluorine-19?
svetoff [14.1K]

Answer:

9 protons, 10 neutrons, and 9 electrons.

Explanation:

The particles of the nucleus of an atom of Fluorine-19 is

9 protons, 10 neutrons, and 9 electrons.

4 0
2 years ago
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