To make a glass of flavored water you dissolve a powdered drink mix in a glass of water which statement best describes the components in the glass?

We just started a new lesson in chemistry and everyone hates it and i dont get it one bit. i hate school. h el p.balanced equationc3h8+5o2-> 3co2+4h2o1.) if you start with 14.8g of propane(c3h8) and 3.44g of oxygen, which is the limiting reactant -check my answer 2.)what mass of excess reagent is left over? 3.)what mass of carbon dioxide can be made? 4.)what mass of water is produced?

What element breaks down into yttrium-90?

Consider the story you just read. all but one of the choices below indicate that something is living.