If you're dealing with gases, some of them could escape the container. Or, if you're dealing with liquids, there could be some outside factors playing in. In general, you need a closed system to observe a reaction accurately.
Answer:
spring
Explanation:
cause i just took le test U-U
Carbon has the highest ionization energy as its energy 1086KJ\Mol and the rest are between 500 and 800.
Answer:
temperature 3000 km below the surface of earth is varied, it's harder to know the actual temperature, it can be found around 3,000 - 3,500 degrees Celsius
Answer:5
Explanation:(H3) is 3 (H3)2 is 5
