What food item will provide a minimum of 1 mole of both sodium and potassium with the least mass? What is that mass?

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

Freezing and boiling are endothermic processes. this means that these processes absorb energy from their surroundings in order to occur. use this information and the data you collected in the phase change gizmo to describe what happens to the temperature of water when you boil it, then explain why this result occurs.

Marcel just purchased 1.69 grams of iron fillings in order to make living putty for his 6 year old niece. how many moles of iron are made in his sample?