Gasoline would be a mixture if I recalled
Answer:
Helium has melting point of - 272.2°C or - 458°F
Sodium (Na) = 650°C. or 208°C
Magnesium (Mg) = 97.79°C. Or 1202°F
Explanation:
1. The reaction is exothermic.
2. I know this because the delta H is a negative number. (-802.4 kJ)
3. This means that this reaction releases heat.
₁₇Cl 1s²2s²2p⁶3s²3p⁵, 1 unpaired electron in 3pz orbital.