a golden colored cube is handed to you. the person wants you to buy it for $100 saying that is a gold nugget. you pull out your gold geology text and look up gold in the mineral table. and read that its density is 19.3g/cm3 you measure the cube and find that it is 2 cm on each side and weighs 40.0g what is its density? is it gold? should you buy it?

the correct answer is:

a. formation of precipitation

nacl or sodium chloride is an ionic compound. this is because an ionic compound pertains to a compound that consists of positively and negatively charged ions. in this case, na (sodium) has a tendency to lose one electron when it reacts with with other atoms, so the resulting sodium ion contains 11 protons and 10 electrons, thus making it positively charged (na+), when chlorine reacts, it usually gains one electron to form an ion called chloride, thus making it negatively charged ( since the ions are oppositely charged, they attract.