What trend do the elements on the periodic table have as you move from left to right? Less reactive on bottom and more reactive on less.

More metallic as you move left to right across the periodic table.

Less metallic as you move left to right across the periodic table.

Reactivity is equal for all elements.

There are 6.022, 104 atoms of hg in 1 mole of hg the number of atoms in 45 moles of hg can be found by multiplying 4.5 by 6.022, 102 which is the number of atoms in 4.5 moles of hg, correctly written in scientific notation with the correct number of significant figures? 0 21,109 0 21,100 271, 1024 27.099, 100 mark this and retum save and exit submit

Use examples from the article to explain one positive and one negative effect that chemistry has had on society.

If i add water to oil what will happen