Answer:
Cutting the supply of oxygen
Explanation:
We know that a thing need three things to burn
- Oxygen
- Heat
- flammable object .
Co_2 stops oxygen supply so fire gets extinguished
Answer:
Ok then
Explanation:
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Explanation:
723.4 it's 723.4 cuz 2.40+721.0 = 723.4
Empirical formula is the simplest ratio of whole numbers of components in a compound
in 100 g of compound
C H O
mass 25.5 g 6.40 g 68.1 g
number of moles 25.5 g/12 g/mol 6.40 g/ 1 g/mol 68.1 g/ 16 g/mol
= 2.13 mol = 6.40 mol = 4.26 mol
divide by least number of moles
2.13/2.13 = 1 6.40/2.13 = 3.0 4.26/2.13 = 2.0
all rounded off
C - 1
H - 3
O - 2
empirical formula - CH₃O₂
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