Which equation represents a conservation of atoms?

4) 4Fe + 3O₂ → 2Fe₂O₃

Explanation:

4Fe + 3O₂ → 2Fe₂O₃

In this equation the numbers of atoms are same in both side. There are four iron and six oxygen atoms are present on left and right side of equation. That's why atoms are conserved. This equation completely followed the law of conservation of mass.

Law of conservation of mass:

According to the law of conservation mass, mass can neither be created nor destroyed in a chemical equation.

This law was given by french chemist  Antoine Lavoisier in 1789. According to this law mass of reactant and mass of product must be equal, because masses are not created or destroyed in a chemical reaction.

The equation that represents the conservation of atoms is equation 4. That is .

Conservation of atoms can be described when the number of atoms on the product and reactant sides are equal for all the elements.

1.

Reactants : Iron = 2 atoms

Oxygen = 4 atoms

Products: Iron = 3 atom

Oxygen = 3 atoms

No conservation of atoms.

2.

Reactants : Iron = 2 atoms

Oxygen = 6 atoms

Products: Iron = 3 atom

Oxygen = 3 atoms

No conservation of atoms.

3.

Reactants : Iron = 4 atoms

Oxygen = 4 atoms

Products: Iron = 4atom

Oxygen = 6 atoms

No conservation of atoms.

4.

Reactants : Iron = 4 atoms

Oxygen = 6 atoms

Products: Iron = 4 atom

Oxygen = 6 atoms

Conservation of atoms.

Thus the equation that represents the conservation of atoms is equation 4. That is .

For more information about the conservation of atoms, refer to the link:

link

that's just how they are

explanation:

you can't control another persons decisions, all you can do is ask that they respect yours. relationships are hard because you have to put the effort into making sure that another person feels seen, heard, and loved. as time goes on, it gets easier, you learn how to do these things without thinking. loving them becomes as easy as breathing, but every relationship will have fights, and sometimes it'll feel like you're drowning, but as long as you can talk it out and compromise, because that's truly what loving another person is, is compromise, then you'll be okay. movies and tv shows have glamorized and romanticized (pardon the pun) what a relationship would be like. real relationships aren't perfectly timed kisses in the rain, zero fights until one big one ends everything, 6 month anniversaries. real relationships are sleepy confused kisses when one person has to leave for work earlier than the other,   real relationships are having small disagreements, real relationships are messy and confusing, real relationships is knowing that even if you're relationship may not last forever and this may not be the person you're going to spend the rest of your life with, that you love them, and you would do anything to see them happy. so yes, relationships are difficult, but so are many other things, relationships can be amazing but also stressful, and not just romantic i'm also talking about platonic relationships (although the primary example here was romantic) sometimes is best to leave friendships behind, so remember, always do whats going to you be happy in the long run.