Answer: There is an extra O2 molecule left over.
Step-by-step explanation: A reaction between four oxygen molecules and two methane molecules will not have any leftovers.
Answer:
see below
Step-by-step explanation:
1. There is an extra O2 molecule left over.
2. Covalent bonds tend to be less polar than ionic bonds.
3. PH3
4. replacement
5. Potassium is more reactive than hydrogen.
6. Each carbon atom would share one pair of electrons with hydrogen and three pairs with the other carbon atom.
7. H2SO4 + 8HI → H2S + 4I2 + 4H2O
8. 2, 1, 2
9. Nitrogen and oxygen have an electronegativity difference of 0.5, so the bond is polar covalent, with oxygen pulling the electrons toward it.
10. Sodium donates an electron to chlorine.
11. selenium (Se)
12. bond type
13. six
14. K
15.indicator
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