Which pair of ions can form an ionic bond with each other and why?

A) Cu + and Ag+; They are both metal ions.

B) S2 - and O2-; They have like charges.

C) Br - and At-; They are both halogen ions.

D) Li + and Br-; They have unlike charges.

Assume that you have an unknown consisting of an aqueous solution of a salt that contains one of the ions listed above. Which ions must be absent on the basis of each of the following observations of the unknown? a. CO3 b. Cr2O7 c. NH4 d. Ba e. Al

Using the data in the table, calculate the rate constant of this reaction. A + B ⟶ C + D Trial [ A ] (M) [ B ] (M) Rate (M/s) 1 0.240 0.280 0.0153 2 0.240 0.700 0.0956 3 0.432 0.280 0.0275 k = Units

Consider the reaction. Upper H subscript 2 upper o (g) plus upper C l subscript 2 upper O (g) double-headed arrow 2 upper H upper C l upper O (g). At equilibrium, the concentrations of the different species are as follows. [H2O] = 0.077 M [Cl2O] = 0.

An atom is the smallest unit of matter. what is the smallest unit of life?

What could you do to change the volume of gas

How does the number of molecules in one mole of carbon dioxide compare with the number of molecules in one mole of water? A. There are four times as many molecules in one mole of carbon dioxide as there are in one mole of water. B.

Suppose you had 1.0 mol samples the following gases at STP. If the volume of each of the samples of gas was reduced to one tenth of its original size and the temperature remained the same, which gas would have the lowest pressure?

What happens when the silvered coin is put on the flame

Do simple molecules conduct electricity? and why?

C) 2,2-dimethyl-3-heptyne how to draw