randywalker0908 randywalker0908

03-02-2020
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For any fire to occur, which elements must be present?
Select all that apply.
A) Nitrogen
B) Oxygen
C) Ignition source
D) Fuel to burn

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DiddyKong1995 DiddyKong1995

03-02-2020

Answer:

B) Oxygen

To start a fire, you create friction and for that friction to become fire, it needs oxygen. The main reason why fire needs oxygen is mostly due to the presence of carbon in the material which is burning.

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izzzzy125 izzzzy125

03-02-2020

the answer is B, oxygen

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Phosphorus forms a 3- ion, and Magnesium forms a 2+ ion. The formula for the compound magnesium phosphide is: a) MgP b) Mg3P2 c) Mg2P3 d) MgP2