Answer:
1
Explanation:
1 hydrogen is displaced from H2so4 in the reaction
They are not chemicall combined, in order for something to be an element it has to be chemically combined. salsa and trail mix are mixtures, also mixtures can be easily picked apart, like you can seperate the pretzels and the m&ms
The answer is a. triple beam balance
It's b. hydrogen bonds between water molecules
The choices for this question are N2, O2 and H2O. I believe the closest correct answer would be N2. H2O would have the strongest one as it is capable of hydrogen bonding which is one strong intermolecular force. To compare oxygen and nitrogen, we look at properties of both substances. Oxygen would have a higher boiling point than nitrogen which means oxygen would require more energy to allow phase transition so it should have a stronger force than nitrogen. Thus, nitrogen would have the weakest intermolecular force.