Which conjugate pair is suited best to make this buffer? Which conjugate pair is suited best to make this buffer? Phosphoric acid H3PO4 and dihydrogen phosphate ion H2PO4− Formic acid HCOOH and formate ion HCOO− Carbonic acid H2CO3 and bicarbonate ion HCO3− Phenol C6H5OH and phenolate ion C6H5O− Monohydrogen phosphate ion HPO42− and phosphate ion PO43− Acetic acid CH3COOH and acetate ion CH3COO− Dihydrogen phosphate ion H2PO4− and monohydrogen phosphate ion HPO42− Ammonium ion +NH4 and ammonia NH3 Lactic acid CH3CH(OH)COOH and lactate ion CH3CH(OH)COO− Bicarbonate ion HCO3− and carbonate ion CO32−

Consider three unlabeled bottles, each contain small pieces of one of the following metals. - magnesium - sodium - silver the following reagents are used for identifying the metals. - pure water - a solution of 1.0 molar hcl - a solution of concentrated hno3 (a) which metal can be easily identified because it is much softer than the other two? describe a chemical test that distinguishes this metal from the other two, using only one of the reagents above. write a balanced chemical equation for the reaction that occurs. (b) one of the other two metals reacts readily with the hcl solution. identify the metal and write the balanced chemical equation for the reaction that occurs when this metal is added to the hcl solution. use the table of standard reduction potentials (attached) to account for the fact that this metal reacts with hcl while the other does not. (c) the one remaining metal reacts with the concentrated hno3 solution. write a balanced chemical equation for the reaction that occurs. (d) the solution obtained in (c) is diluted and a few drops of 1 m hcl is added. describe what would be observed. write a balanced chemical equation for the reaction that occurs.

What three natural resources are found in the great lakes region

Type the letter that represents the correct location for each particle type below.