An ion has 109 neutrons, 87 protons and 84 electrons. What is the net charge in Coulombs on the ion?

Curious carl calculated the density of a cube to be 4.50 g/cm3. what is the density of the cube in g/l?

Gordon is going for a run through the park, but it is cold outside. the low outside temperature could affect his personal safety.

Sasha has just gotten a new job in a nearby city. after comparison shopping, she found that renting a nice two-bedroom apartment would cost around $800 per month. her utilities would cost about $150 per month. sasha has enough money saved for a down payment, and she found that she can buy a three-bedroom house or condo with a mortgage payment of $1,000 per month, including taxes and homeowner's insurance. her utilities would cost about $200 per month. what is the advantage of buying the house over renting the apartment?