NEED HELP! An experiment . must always be done in a laboratory is best done if only one variable is tested for at a time can be done only by direct observation must always be done in the field

If i add water to oil what will happen

16. why must the number of electrons lost equal the number of electrons gained in every redox reaction? use 3 – 4 sentences in your own words to address this question. 18. what type of radiation is emitted when chromium-51 decays into manganese-51? show the nuclear equation that leads you to this answer. 19. a radioactive nucleus alpha decays to yield a sodium-24 nucleus in 14.8 hours. what was the identity of the original nucleus? show the nuclear equation that leads you to this answer.

Which substance has non polar covalent bonds