Explanation: To find the overall charge, we add electrons and protons. Make sure that you use the negative sign for an electron and positive sign for proton. There are 10 electrons. It means the charge is "-10" There are 7 protons. It means the charge is "+7"
<span>D. The screw changes the direction of a force - it converts linear force into rotational force. It also reduces the force required - the closer the threads, the smaller the input force required to get the same output force.</span>
When you are converting grams to moles, the operation that you will be doing is dividing by the molar mass to obtain the amount of moles of the given sample.
