Question 1 Describe a procedure you could follow to determine the specific heat of a 45-g piece of metal.
Instructions

The diagrams show objects’ gravitational pull toward each other. which statement describes the relationship between diagram x and y? gravity attracts only larger objects toward one another. gravity attracts larger objects only if they are close to one another. if the masses of the objects increase, then the force between them also increases. if distance between the objects increases, then the amount of force also increases.

Astudent reacts 13 moles of iron with 21 moles of oxygen according to the following equation:

The chemical bond connecting one nucleotide with the next one along the nucleic acid chain is called a