Given the table below, what is the chemical formula for a compound between Rb and the nitrate ion NO3-1? nitrate ion NO3-1 phosphate PO4-3 sulfate SO4-2 acetate C2H3O2-1 ammonium NH4+1 chromate CrO4-2 carbonate CO3-2 dichromate Cr2O7-2 permanganate MnO4-1 sulfite SO3-2 RbNO 3 Rb(NO 3) 2 Rb 2NO 3 Rb 2(NO 3) 3

Which statements describe polyatomic ions? check all that apply. polyatomic ions have many charges. polyatomic ions have one overall charge. polyatomic ions repel other ions to form ionic bonds. polyatomic ions attract other ions to form ionic bonds. polyatomic ions are made up of only one type of atom. polyatomic ions are made up of two or more types of atoms.

Which of the following is an example of physical change not a chemical change? a) a log gives off heat and light as it burns. b) a tree stores energy from the sun in its fruit. c) a penny lost in the grass slowly changes color. d) a water pipe freezes and cracks on a cold night.

The table lists the lattice energies of some compounds.compoundlattice energy (kj/mol)lif            –1,036licl            –853naf            –923kf            –821nacl            –786which statement about crystal lattice energy is  best  supported by the information in the table? the lattice energy increases as cations get smaller, as shown by lif and kf.the lattice energy increases as the cations get larger, as shown by lif and licl.the lattice energy decreases as cations get smaller, as shown by nacl and naf.the lattice energy decreases as the cations get smaller, as shown by naf and kf.