1.A particular ion has a positive two charge. What does this indicate about the particle and its electrons? 2.What type of elements (metals, nonmetals, or metalloids) are involved in ionic bonding? How does an ionic bond occur?
3.What kind of bond would form between iron and copper? How do you know?
4.How do you know if a covalent bond has formed?
5.A bond forms between hydrogen and bromine. Will it be ionic, polar covalent, or nonpolar covalent? How do you determine this?

Select each correct answer. more than one answer may be correct. which of the following is a characteristic of unicellular organisms? they can possess tissues and organs. all of their functions are performed by a single cell. they are usually microscopic. each of their cells is specialized to perform a specific function.

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?

16. why must the number of electrons lost equal the number of electrons gained in every redox reaction? use 3 – 4 sentences in your own words to address this question. 18. what type of radiation is emitted when chromium-51 decays into manganese-51? show the nuclear equation that leads you to this answer. 19. a radioactive nucleus alpha decays to yield a sodium-24 nucleus in 14.8 hours. what was the identity of the original nucleus? show the nuclear equation that leads you to this answer.