Ihave a question about isotopes, i understand what they are however i can't answer this question for school. it doesn't seem like i have enough info to answer the question
write the symbols for the following isotopes.
its atoms contain 50 electrons and 70 neutrons
express your answer as an isotope.

Achemist 16 drop copper metal from copper chloride solution. the chemist place is 0.50 g of aluminum foil in a solution containing 0.75 g of copper (ii) chloride. a single replacement reaction takes place. which statement explains the maximum amount of copper that the chemist can extract using this reaction?

In the space, show a correct numerical setup for calculating the number of moles of co2 present in 11 grams of co2

Which suspect most likely committed the robbery and how do you know